CI: drop python runner label; mirror AtAnyRate install style.

.gitea/workflows/ci.yml

@@ -30,22 +30,23 @@ jobs:
   python-ci:
     needs: skip-ci-check
     if: needs.skip-ci-check.outputs.should-skip != '1'
-    runs-on: [homelab, self-hosted, linux, python]
+    runs-on: [homelab, self-hosted, linux]
     container:
       image: node:20-bookworm
     steps:
       - uses: actions/checkout@v4
 
-      - name: Install Python + run pytest
+      - name: Install Python tooling
         run: |
-          set -euxo pipefail
           apt-get update -qq
-          DEBIAN_FRONTEND=noninteractive apt-get install -y -qq python3 python3-pip python3-venv python3-dev
-          python3 --version
-          python3 -m pip install --upgrade pip setuptools wheel --break-system-packages
+          DEBIAN_FRONTEND=noninteractive apt-get install -y -qq python3 python3-pip python3-venv
+          python3 -m pip install --upgrade pip --break-system-packages
+          python3 -m pip install pytest setuptools wheel --break-system-packages
           python3 -m pip install -e "./backend[dev]" --break-system-packages
-          cd backend
-          python3 -m pytest -q
+
+      - name: Pytest
+        working-directory: backend
+        run: python3 -m pytest -q
 
   secret-scan:
     needs: skip-ci-check