Make more disk space by removing unused software (#537)

Author: sffc

.github/workflows/e2e.yml

@@ -19,6 +19,18 @@ jobs:
     name: End-to-end
     runs-on: ubuntu-latest
     steps:
+      - name: Free up some disk space
+        run: |
+          echo "Available storage before:"
+          sudo df -h
+          echo
+          sudo rm -rf /usr/share/dotnet
+          sudo rm -rf /usr/local/lib/android
+          sudo rm -rf /opt/ghc
+          sudo rm -rf /opt/hostedtoolcache/CodeQL
+          echo "Available storage after:"
+          sudo df -h
+          echo
       - name: Checkout repo
         uses: actions/checkout@v2
       - name: Cache ICU4C binary versions