Allow skipping latest tag check

Author: m-aciek

.github/workflows/build.yaml

@@ -5,6 +5,11 @@ on:
         description: 'Tag from CPython repository'
         required: true
         default: 'v3.14.0'
+      skip-tag-check:
+        description: 'Allow running build for non-latest patch tags (useful for testing)'
+        required: true
+        type: boolean
+        default: false
 permissions:
   contents: write
 jobs:
@@ -22,6 +27,7 @@ jobs:
             echo "Provided tag $input_tag is not the latest patch for $major_minor (latest: $latest_patch)." >&2
             exit 1
           fi
+        if: ${{ github.event.inputs.skip-tag-check == false }}
       - uses: actions/setup-python@master
         with:
           python-version: 3