Bump warden from 1.2.8 to 1.2.9 (#14738)

Bumps [warden](https://github.com/hassox/warden) from 1.2.8 to 1.2.9.
- [Release notes](https://github.com/hassox/warden/releases)
- [Changelog](https://github.com/wardencommunity/warden/blob/master/CHANGELOG.md)
- [Commits](https://github.com/hassox/warden/compare/v1.2.8...v1.2.9)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -641,8 +641,8 @@ GEM
     unf_ext (0.0.7.7)
     unicode-display_width (1.7.0)
     uniform_notifier (1.13.0)
-    warden (1.2.8)
+    warden (1.2.9)
-      rack (>= 2.0.6)
+      rack (>= 2.0.9)
     webauthn (3.0.0.alpha1)
       android_key_attestation (~> 0.3.0)
       awrence (~> 1.1)