ci: fix upgrade requirements workflow (#180)

.github/workflows/upgrade-requirements.yml

@@ -22,21 +22,26 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
-    - name: Set up Python 3.10
+    - name: Set up Python 3.10 and 3.12
       uses: actions/setup-python@39cd14951b08e74b54015e9e001cdefcf80e669f # v5.1.1
       with:
-        python-version: '3.10'
+        python-version: |
+          3.10
+          3.12
         cache: pip
+    - run: |
+        python3.10 --version
+        python3.12 --version
     - name: Install pre-requisites (e.g. hatch)
       run: python -m pip install --require-hashes --requirement=requirements/ci
-    - name: Upgrade ci requirements
+    - name: Upgrade ci requirements (using Python 3.10 for compatibility)
       run: |
         rm requirements/ci
-        hatch env run --env ci -- python --version
-    - name: Upgrade docs requirements
+        HATCH_PYTHON=3.10 hatch env run --env ci -- python --version
+    - name: Upgrade docs requirements (using Python 3.12)
       run: |
         rm requirements/docs
-        hatch env run --env docs -- python --version
+        HATCH_PYTHON=3.12 hatch env run --env docs -- python --version
       # Ref: https://github.com/peter-evans/create-pull-request
     - uses: peter-evans/create-pull-request@c5a7806660adbe173f04e3e038b0ccdcd758773c # v6.1.0
       with: