build: Bump bitflags from 2.9.3 to 2.9.4

Bumps [bitflags](https://github.com/bitflags/bitflags) from 2.9.3 to 2.9.4.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/2.9.3...2.9.4)

---
updated-dependencies:
- dependency-name: bitflags
  dependency-version: 2.9.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.toml

@@ -137,7 +137,7 @@ serde_with = { version = "3.14.0", default-features = false }
 
 # other crates
 anyhow = "1.0.98"
-bitflags = "2.9.3"
+bitflags = "2.9.4"
 byteorder = "1.5.0"
 cfg-if = "1.0.0"
 clap = "4.5.47"