build(deps): bump flipper-ui from 1.3.0 to 1.3.1 (#4762)

Bumps [flipper-ui](https://github.com/flippercloud/flipper) from 1.3.0 to 1.3.1.
- [Release notes](https://github.com/flippercloud/flipper/releases)
- [Changelog](https://github.com/flippercloud/flipper/blob/main/Changelog.md)
- [Commits](flippercloud/flipper@v1.3.0...v1.3.1)

---
updated-dependencies:
- dependency-name: flipper-ui
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -264,9 +264,9 @@ GEM
     flipper-active_record (1.3.0)
       activerecord (>= 4.2, < 8)
       flipper (~> 1.3.0)
-    flipper-ui (1.3.0)
+    flipper-ui (1.3.1)
       erubi (>= 1.0.0, < 2.0.0)
-      flipper (~> 1.3.0)
+      flipper (~> 1.3.1)
       rack (>= 1.4, < 4)
       rack-protection (>= 1.5.3, < 5.0.0)
       rack-session (>= 1.0.2, < 3.0.0)
@@ -485,7 +485,7 @@ GEM
     puma (6.4.3)
       nio4r (~> 2.0)
     racc (1.8.1)
-    rack (2.2.9)
+    rack (2.2.10)
     rack-protection (3.1.0)
       rack (~> 2.2, >= 2.2.4)
     rack-session (1.0.2)
@@ -606,7 +606,7 @@ GEM
       ffi (~> 1.12)
       logger
     ruby2_keywords (0.0.5)
-    sanitize (6.1.0)
+    sanitize (6.1.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     sass-rails (6.0.0)