Updating action versions

Author: jamesridgway

.github/workflows/ci.yml

@@ -10,9 +10,9 @@ jobs:
       matrix:
         python-version: [3.10.15, 3.11.10, 3.12.6]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install venv and dependencies