chore: bump bitflags from 2.11.1 to 2.12.1

Bumps [bitflags](https://github.com/bitflags/bitflags) from 2.11.1 to 2.12.1.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](bitflags/bitflags@2.11.1...2.12.1)

---
updated-dependencies:
- dependency-name: bitflags
  dependency-version: 2.12.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -31,7 +31,7 @@ trippy-dns = { version = "0.14.0-dev", path = "crates/trippy-dns" }
 trippy-packet = { version = "0.14.0-dev", path = "crates/trippy-packet" }
 anyhow = "1.0.91"
 arrayvec = { version = "0.7.6", default-features = false }
-bitflags = "2.11.1"
+bitflags = "2.12.1"
 caps = "0.5.6"
 chrono = { version = "0.4.44", default-features = false }
 chrono-tz = "0.10.4"