build(deps): bump regex from 1.9.0 to 1.9.1 (#529)

Bumps [regex](https://github.com/rust-lang/regex) from 1.9.0 to 1.9.1.
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](rust-lang/regex@1.9.0...1.9.1)

---
updated-dependencies:
- dependency-name: regex
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Cargo.lock

@@ -14,7 +14,7 @@ categories = ["cryptography"]
 [dependencies]
 csv = "^1.2.2"
 hex = "^0.4.3"
-regex = "^1.9.0"
+regex = "^1.9.1"
 rusoto_core = "^0.48"
 rusoto_credential = "^0.48"
 rusoto_kms = "^0.48"

integration/awskms/Cargo.toml

@@ -18,7 +18,7 @@ hex = "^0.4.3"
 p256 = { version = "^0.11.1", features = ["pkcs8"] }
 # `rand` version must match that required by `ed25519-dalek`.
 rand = "^0.7"
-regex = "^1.9.0"
+regex = "^1.9.1"
 serde = { version = "^1.0.166", features = ["derive"] }
 serde_json = "^1.0.100"
 tink-core = { version = "^0.2", features = ["insecure", "json"] }