[rubygems/rubygems] Postpone to remove legacy mingw platform

ruby/rubygems@9b3a5a8ae9

Author: hsbt

lib/bundler/lockfile_parser.rb

@@ -142,7 +142,7 @@ def initialize(lockfile, strict: false)
       end
 
       if @platforms.include?(Gem::Platform::X64_MINGW_LEGACY)
-        SharedHelpers.feature_removed!("Found x64-mingw32 in lockfile, which is no longer supported as of Bundler 4.0.")
+        SharedHelpers.feature_deprecated!("Found x64-mingw32 in lockfile, which is deprecated and will be removed in the future.")
       end
 
       @most_specific_locked_platform = @platforms.min_by do |bundle_platform|

spec/bundler/other/major_deprecation_spec.rb

@@ -601,7 +601,7 @@
     it "raises a helpful error" do
       bundle "install", raise_on_error: false
 
-      expect(err).to include("Found x64-mingw32 in lockfile, which is no longer supported as of Bundler 4.0.")
+      expect(err).to include("Found x64-mingw32 in lockfile, which is deprecated and will be removed in the future.")
     end
   end