ci: add jlumbroso/free-disk-space to ./github/workflows/test.yml

.github/workflows/test.yml

@@ -53,6 +53,22 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - name: Free Disk Space (Ubuntu)
+      if: matrix.platform == 'ubuntu-latest' 
+      uses: jlumbroso/[email protected]
+      with:
+        # this might remove tools that are actually needed,
+        # if set to "true" but frees about 6 GB
+        tool-cache: false
+
+        # all of these default to true, but feel free to set to
+        # "false" if necessary for your workflow
+        android: true
+        dotnet: true
+        haskell: true
+        large-packages: true
+        docker-images: true
+        swap-storage: true
     - name: "${{ matrix.toolchain }}"
       uses: actions-rs/toolchain@v1
       with: