Update main.yml

Author: bgruening

.github/workflows/main.yml

@@ -17,15 +17,15 @@ jobs:
           - '3.8.3'
     steps:
       - name: Checkout bot code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Cache downloads
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: |
             ~/.cache/pip
           key: ${{ runner.os }}_Python-${{ matrix.python-version }}_Singularity-${{ matrix.singularity-version }}
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install Python dependencies