Use ruby-magic-static 0.3.4 for the time being

When using the regular ruby-magic Gem we're running into issues with not
being able to download the libmagic library. In merge request
https://gitlab.com/gitlab-org/ruby-magic/-/merge_requests/5 we added a
quick workaround to at least let us continue to deploy. This commit
switches over our Rails application to use that fork for the time being.

Gemfile

@@ -274,7 +274,7 @@ gem 'licensee', '~> 9.14.1'
 gem 'charlock_holmes', '~> 0.7.7'
 
 # Detect mime content type from content
-gem 'ruby-magic', '~> 0.3'
+gem 'ruby-magic-static', '~> 0.3.4'
 
 # Fake version of the gem to trick bundler
 gem 'mimemagic', '0.3.7', path: 'vendor/shims/mimemagic', require: false

Gemfile.lock

@@ -1113,7 +1113,7 @@ GEM
       i18n
     ruby-fogbugz (0.2.1)
       crack (~> 0.4)
-    ruby-magic (0.3.0)
+    ruby-magic-static (0.3.4)
     ruby-prof (1.3.1)
     ruby-progressbar (1.11.0)
     ruby-saml (1.7.2)
@@ -1560,7 +1560,7 @@ DEPENDENCIES
   rspec_junit_formatter
   rspec_profiling (~> 0.0.6)
   ruby-fogbugz (~> 0.2.1)
-  ruby-magic (~> 0.3)
+  ruby-magic-static (~> 0.3.4)
   ruby-prof (~> 1.3.0)
   ruby-progressbar (~> 1.10)
   ruby_parser (~> 3.15)