Bump bitflags from 2.4.2 to 2.9.4

Bumps [bitflags](https://github.com/bitflags/bitflags) from 2.4.2 to 2.9.4.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](bitflags/bitflags@2.4.2...2.9.4)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -30,7 +30,7 @@ borsh09 = { package = "borsh", version = "=0.9.3" }
 solana-security-txt = { version = "=1.1.1" }
 bytemuck = { version = "=1.16.3", features = ["derive", "min_const_generics"] }
 num_enum = { version = "=0.7.2" }
-bitflags = { version = "=2.4.2" }
+bitflags = { version = "=2.9.4" }
 
 [dev-dependencies]
 proptest = "=1.5.0"