Merge pull request #256 from Metaswitch/dependabot/cargo/thiserror-1.0.37

Author: dependabot[bot]

Cargo.lock

@@ -26,7 +26,7 @@ nix = { version = "0.24", default-features = false, features = ["user"] }
 shlex = "1.1"
 sha2 = "0.10.5"
 anyhow = "1.0.66"
-thiserror = "1.0.34"
+thiserror = "1.0.37"
 
 [dev-dependencies]
 tempfile = "3.3.0"