CI: enable macOS x64 build back

Author: HuguesDelorme

.github/workflows/ci_macos.yml

@@ -7,8 +7,7 @@ jobs:
         strategy:
             matrix:
                 qt_version_major: [5, 6]
-                os: [macos-latest-xlarge]
-                #os: [macos-latest-large, macos-latest-xlarge]
+                os: [macos-latest-large, macos-latest-xlarge]
 
         runs-on: ${{matrix.os}}
         name: build-${{matrix.os}}-qt${{matrix.qt_version_major}}