Merge branch 'sh-update-ruby-magic-0.5.4' into 'master'

Update to ruby-magic v0.5.4

See merge request gitlab-org/gitlab!79388

Gemfile.lock

@@ -1119,7 +1119,7 @@ GEM
       rubocop-ast (>= 0.7.1)
     ruby-fogbugz (0.2.1)
       crack (~> 0.4)
-    ruby-magic (0.5.3)
+    ruby-magic (0.5.4)
       mini_portile2 (~> 2.6)
     ruby-prof (1.3.1)
     ruby-progressbar (1.11.0)