Pins actions/setup-python to SHA

Pins actions/setup-python to v6.2 commit hash instead of the tag.

Author: Alex-Welsh

.github/workflows/stackhpc-ci-cleanup.yml

@@ -22,7 +22,7 @@ jobs:
           path: src/kayobe-config
 
       - name: Setup Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@28f2168f4d98ee0445e3c6321f6e6616c83dd5ec
 
       - name: Generate clouds.yaml
         run: |

.github/workflows/stackhpc-pull-request.yml

@@ -56,7 +56,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Setup Python ${{ matrix.python-version }} 🐍
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@28f2168f4d98ee0445e3c6321f6e6616c83dd5ec
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install Tox 📦
@@ -83,7 +83,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
 
       - name: Setup Python ${{ matrix.python-version }} 🐍
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@28f2168f4d98ee0445e3c6321f6e6616c83dd5ec
         with:
           python-version: ${{ matrix.python }}