Update the conditional step comparison logic

!3.13 is not future proof

Author: matthewmcneely

.github/workflows/ci-pydgraph-tests.yml

@@ -41,6 +41,8 @@ jobs:
           python -m pip install --upgrade pip
           python -m pip install .[dev]
       - name: Verify that updated protobufs are checked in
+        if: ${{ matrix.python-version == '3.9' || matrix.python-version == '3.10' ||
+          matrix.python-version == '3.11' || matrix.python-version == '3.12' }} # Skip for Python 3.13+ due to grpcio-tools compatibility
         run: |
           cd pydgraph
           python scripts/protogen.py