Bump regex from 1.4.6 to 1.5.5

Bumps [regex](https://github.com/rust-lang/regex) from 1.4.6 to 1.5.5.
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](rust-lang/regex@1.4.6...1.5.5)

---
updated-dependencies:
- dependency-name: regex
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -55,7 +55,7 @@ lazycell = "1"
 lazy_static = "1"
 peeking_take_while = "0.1.2"
 quote = { version = "1", default-features = false }
-regex = { version = "1.0", default-features = false , features = [ "std", "unicode"]}
+regex = { version = "1.5", default-features = false , features = [ "std", "unicode"]}
 which = { version = "4.2.1", optional = true, default-features = false }
 shlex = "1"
 rustc-hash = "1.0.1"