make space for docker CI

.github/workflows/docker-image.yml

@@ -11,11 +11,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - name: Build the Docker image
+    - name: Cleanup
       run: |
-        # Workaround to provide additional free space for testing.
-        #   https://github.com/actions/virtual-environments/issues/2840
-        sudo rm -rf /usr/share/dotnet
-        sudo rm -rf /opt/ghc
-        sudo rm -rf "/usr/local/share/boost" 
-        docker build . --file Dockerfile --tag openfold:$(date +%s)
+	sudo rm -rf /usr/share/dotnet
+	sudo rm -rf /opt/ghc
+	sudo rm -rf "/usr/local/share/boost"
+	sudo rm -rf "$AGENT_TOOLSDIRECTORY"
+    - name: Build the Docker image
+      run: docker build . --file Dockerfile --tag openfold:$(date +%s)