Update bitflags requirement from 1.0 to 2.6

Updates the requirements on [bitflags](https://github.com/bitflags/bitflags) to permit the latest version.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](bitflags/bitflags@1.0.0...2.6.0)

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

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

Cargo.toml

@@ -22,7 +22,7 @@ open_al = ["coreaudio-sys/open_al"]
 core_midi = ["coreaudio-sys/core_midi"]
 
 [dependencies]
-bitflags = "1.0"
+bitflags = "2.6"
 coreaudio-sys = { version = "0.2", default-features = false }
 core-foundation-sys = "0.8.3"