Build(deps): Bump mini_mime from 1.0.3 to 1.1.0 (#12607)

Bumps [mini_mime](https://github.com/discourse/mini_mime) from 1.0.3 to 1.1.0.
- [Release notes](https://github.com/discourse/mini_mime/releases)
- [Changelog](https://github.com/discourse/mini_mime/blob/master/CHANGELOG)
- [Commits](https://github.com/discourse/mini_mime/compare/v1.0.3...v1.1.0)

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

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

Gemfile.lock

@@ -208,7 +208,7 @@ GEM
     message_bus (3.3.4)
       rack (>= 1.1.3)
     method_source (1.0.0)
-    mini_mime (1.0.3)
+    mini_mime (1.1.0)
     mini_portile2 (2.5.0)
     mini_racer (0.3.1)
       libv8 (~> 8.4.255)