Bump vergen from 3.0.4 to 3.1.0

Bumps [vergen](https://github.com/rustyhorde/vergen) from 3.0.4 to 3.1.0.
- [Release notes](https://github.com/rustyhorde/vergen/releases)
- [Commits](https://github.com/rustyhorde/vergen/commits/v3.1.0)

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

Cargo.lock

@@ -2233,13 +2233,12 @@ checksum = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
 
 [[package]]
 name = "vergen"
-version = "3.0.4"
+version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6aba5e34f93dc7051dfad05b98a18e9156f27e7b431fe1d2398cb6061c0a1dba"
+checksum = "4ce50d8996df1f85af15f2cd8d33daae6e479575123ef4314a51a70a230739cb"
 dependencies = [
  "bitflags",
  "chrono",
- "failure",
 ]
 
 [[package]]

Cargo.toml

@@ -25,4 +25,4 @@ actix-rt = "1.0.0"
 
 [build-dependencies]
 ructe = "0.9.2"
-vergen = "3.0.4"
+vergen = "3.1.0"