build(deps): bump bitflags from 2.3.3 to 2.4.0

Bumps [bitflags](https://github.com/bitflags/bitflags) from 2.3.3 to 2.4.0.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](bitflags/bitflags@2.3.3...2.4.0)

---
updated-dependencies:
- dependency-name: bitflags
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Cargo.toml

@@ -70,7 +70,7 @@ dhcpv4 = [
 [dependencies]
 ahash = { version = "0.8", default-features = false }
 align-address = "0.1"
-bitflags = "2.3"
+bitflags = "2.4"
 bit_field = "0.10"
 crossbeam-utils = { version = "0.8", default-features = false }
 dyn-clone = "1.0"