Bump regex from 1.8.3 to 1.8.4 (#1007)

Bumps [regex](https://github.com/rust-lang/regex) from 1.8.3 to 1.8.4.
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/regex/compare/1.8.3...1.8.4)

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

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

Cargo.lock

@@ -2406,9 +2406,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.8.3"
+version = "1.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81ca098a9821bd52d6b24fd8b10bd081f47d39c22778cafaa75a2857a62c6390"
+checksum = "d0ab3ca65655bb1e41f2a8c8cd662eb4fb035e67c3f78da1d61dffe89d07300f"
 dependencies = [
  "aho-corasick",
  "memchr",

Cargo.toml

@@ -52,7 +52,7 @@ primitive-types = { version = "0.12.1", default-features = false, features = ["c
 proc-macro-error = "1.0.4"
 proc-macro2 = "1.0.60"
 quote = "1.0.28"
-regex = "1.8.3"
+regex = "1.8.4"
 scale-info = "2.7.0"
 scale-value = "0.10.0"
 scale-bits = "0.3"