Use the linux/docker runner

.gitea/workflows/pip-audit.yml

@@ -11,13 +11,28 @@ on:
 # XXX need to do stuff with uv
 jobs:
   build:
-    runs-on: freebsd
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.11"]
+        python-version:
+          - "3.11"
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: '${{ matrix.python-version }}'
+          cache: 'pip'
+          cache-dependency-path: 'requirements.txt'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install --upgrade pip-audit
+          pip install -r requirements.txt
+
       - name: Check vulnerable components with pip-audit
         run: |
           pip-audit -r requirements.txt
-