Run primer on 3.7 and 3.10

.github/workflows/primer_comment.yaml

@@ -30,11 +30,11 @@ jobs:
       - run: npm install @octokit/rest
       - name: Check out code from GitHub
         uses: actions/checkout@v3.0.2
-      - name: Set up Python 3.8
+      - name: Set up Python 3.10
         id: python
         uses: actions/setup-python@v3.1.2
         with:
-          python-version: 3.8
+          python-version: 3.10
 
       # Restore cached Python environment
       - name: Generate partial Python venv restore key

.github/workflows/primer_run_main.yaml

@@ -22,7 +22,7 @@ jobs:
     timeout-minutes: 45
     strategy:
       matrix:
-        python-version: ["3.8"]
+        python-version: ["3.7", "3.10"]
     steps:
       - name: Check out code from GitHub
         uses: actions/checkout@v3.0.2

.github/workflows/primer_run_pr.yaml

@@ -31,7 +31,7 @@ jobs:
     timeout-minutes: 120
     strategy:
       matrix:
-        python-version: ["3.8"]
+        python-version: ["3.7", "3.10"]
     steps:
       - name: Check out code from GitHub
         uses: actions/checkout@v3.0.2