Merge pull request #1227 from rust-lang/dependabot/cargo/syn-1.0.61

Cargo.lock

@@ -1700,9 +1700,9 @@ checksum = "1e81da0851ada1f3e9d4312c704aa4f8806f0f9d69faaf8df2f3464b4a9437c2"
 
 [[package]]
 name = "syn"
-version = "1.0.60"
+version = "1.0.61"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c700597eca8a5a762beb35753ef6b94df201c81cca676604f547495a0d7f0081"
+checksum = "ed22b90a0e734a23a7610f4283ac9e5acfb96cbb30dfefa540d66f866f1c09c5"
 dependencies = [
  "proc-macro2",
  "quote",