build(deps): bump syn from 1.0.18 to 1.0.19

Bumps [syn](https://github.com/dtolnay/syn) from 1.0.18 to 1.0.19.
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](https://github.com/dtolnay/syn/compare/1.0.18...1.0.19)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Cargo.lock

@@ -20,7 +20,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -223,7 +223,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -320,7 +320,7 @@ dependencies = [
  "proc-macro-hack 0.5.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -808,7 +808,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1084,7 +1084,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1163,7 +1163,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "syn"
-version = "1.0.18"
+version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1178,7 +1178,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1247,7 +1247,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1468,7 +1468,7 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-shared 0.2.56 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1499,7 +1499,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-backend 0.2.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-shared 0.2.56 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1519,7 +1519,7 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-backend 0.2.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "weedle 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1737,7 +1737,7 @@ dependencies = [
 "checksum sourcefile 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "4bf77cb82ba8453b42b6ae1d692e4cdc92f9a47beaf89a847c8be83f4e328ad3"
 "checksum stringprep 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8ee348cb74b87454fff4b551cbf727025810a004f88aeacae7f85b87f4e9a1c1"
 "checksum subtle 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2d67a5a62ba6e01cb2192ff309324cb4875d0c451d55fe2319433abe7a05a8ee"
-"checksum syn 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)" = "410a7488c0a728c7ceb4ad59b9567eb4053d02e8cc7f5c0e0eeeb39518369213"
+"checksum syn 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)" = "e8e5aa70697bb26ee62214ae3288465ecec0000f05182f039b477001f08f5ae7"
 "checksum synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)" = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
 "checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 "checksum termcolor 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bb6bfa289a4d7c5766392812c0a1f4c1ba45afa1ad47803c11e1f407d846d75f"