Fix PR e2e workflow - disk space

Author: stellasia

.github/workflows/pr-e2e-tests.yaml

@@ -51,10 +51,17 @@ jobs:
     steps:
       - name: Check out repository code
         uses: actions/checkout@v4
-      - name: Docker Prune
+      - name: Free up disk space (ubuntu-latest)
         run: |
-          docker system prune -af
-          docker volume prune -f
+          sudo rm -rf /usr/local/lib/android \
+                      /usr/share/dotnet \
+                      /opt/ghc \
+                      /opt/hostedtoolcache
+          docker system prune -af || true
+          docker volume prune -f || true
+          docker builder prune -af || true
+          sudo apt-get clean || true
+          df -h
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with: