Pin hashes on the test action

Author: Sneagan

.github/workflows/test-python.yml

@@ -7,9 +7,9 @@ jobs:
       matrix:
         python-version: ["pypy3.10", "3.9", "3.10", "3.11", "3.12", "3.13"]
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
     - name: Set up Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
       with:
         python-version: '3.x'
     - name: Install dependencies