Replace mimemagic with marcel (CI test)

comfortable_mexican_sofa.gemspec

@@ -24,9 +24,9 @@ Gem::Specification.new do |s|
   s.add_dependency "haml-rails",            ">= 1.0.0"
   s.add_dependency "jquery-rails",          ">= 4.3.1"
   s.add_dependency "kramdown",              ">= 1.0.0"
-  s.add_dependency "mimemagic",             ">= 0.3.2"
+  s.add_dependency "marcel",                ">= 1.0.0"
   s.add_dependency "mini_magick",           ">= 4.8.0"
-  s.add_dependency "rails",                 ">= 5.2.0"
+  s.add_dependency "rails",                 ">= 5.2.0", "< 6.1.0"
   s.add_dependency "rails-i18n",            ">= 5.0.0"
   s.add_dependency "sassc-rails",           ">= 2.0.0"
 end

lib/comfortable_mexican_sofa/seeds.rb

@@ -6,7 +6,7 @@ module ComfortableMexicanSofa::Seeds
 
   class Error < StandardError; end
 
-  require "mimemagic"
+  require "marcel"
 
   class Importer
 

lib/comfortable_mexican_sofa/seeds/file/importer.rb

@@ -38,7 +38,7 @@ def import!
           file.file = {
             io:           file_handler,
             filename:     filename,
-            content_type: MimeMagic.by_magic(file_handler)
+            content_type: Marcel::Magic.by_magic(file_handler)
           }
         end
 

lib/comfortable_mexican_sofa/seeds/page/importer.rb

@@ -192,7 +192,7 @@ def files_content(record, identifier, path, frag_content)
         {
           io:           file_handler,
           filename:     filename,
-          content_type: MimeMagic.by_magic(file_handler)
+          content_type: Marcel::Magic.by_magic(file_handler)
         }
       end
 

test/gemfiles/6.0.gemfile

@@ -4,7 +4,7 @@ source "http://rubygems.org"
 
 gemspec path: "../../"
 
-gem "rails", ">= 6.0"
+gem "rails", ">= 6.0", "< 6.1"
 
 group :development, :test do
   gem "byebug",             "~> 10.0.0", platforms: %i[mri mingw x64_mingw]