Maintenance: Bump brakeman from 5.0.4 to 5.1.1

Bumps [brakeman](https://github.com/presidentbeef/brakeman) from 5.0.4 to 5.1.1.
- [Release notes](https://github.com/presidentbeef/brakeman/releases)
- [Changelog](https://github.com/presidentbeef/brakeman/blob/main/CHANGES.md)
- [Commits](https://github.com/presidentbeef/brakeman/compare/v5.0.4...v5.1.1)

Gemfile.lock

@@ -127,7 +127,7 @@ GEM
       tzinfo
     bootsnap (1.7.5)
       msgpack (~> 1.0)
-    brakeman (5.0.4)
+    brakeman (5.1.1)
     browser (5.3.1)
     buftok (0.2.0)
     builder (3.2.4)