build(deps): bump async-trait from 0.1.22 to 0.1.23

Bumps [async-trait](https://github.com/dtolnay/async-trait) from 0.1.22 to 0.1.23.
- [Release notes](https://github.com/dtolnay/async-trait/releases)
- [Commits](https://github.com/dtolnay/async-trait/compare/0.1.22...0.1.23)

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

Cargo.lock

@@ -15,7 +15,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "async-trait"
-version = "0.1.22"
+version = "0.1.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1252,7 +1252,7 @@ name = "tokio-postgres"
 version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "async-trait 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "async-trait 0.1.23 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "bytes 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "fallible-iterator 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1584,7 +1584,7 @@ dependencies = [
 [metadata]
 "checksum aho-corasick 0.7.7 (registry+https://github.com/rust-lang/crates.io-index)" = "5f56c476256dc249def911d6f7580b5fc7e875895b5d7ee88f5d602208035744"
 "checksum anyhow 1.0.26 (registry+https://github.com/rust-lang/crates.io-index)" = "7825f6833612eb2414095684fcf6c635becf3ce97fe48cf6421321e93bfbd53c"
-"checksum async-trait 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)" = "c8df72488e87761e772f14ae0c2480396810e51b2c2ade912f97f0f7e5b95e3c"
+"checksum async-trait 0.1.23 (registry+https://github.com/rust-lang/crates.io-index)" = "cc1def5f0efeaa4194778c64ebc17f7a97f650edb99228ef0c8185277f518669"
 "checksum atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
 "checksum autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f8aac770f1885fd7e387acedd76065302551364496e46b3dd00860b2f8359b9d"
 "checksum backtrace 0.3.43 (registry+https://github.com/rust-lang/crates.io-index)" = "7f80256bc78f67e7df7e36d77366f636ed976895d91fe2ab9efa3973e8fe8c4f"