fix CI (hopefully)

.github/workflows/build_mlir_cache.yml

@@ -12,6 +12,29 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+      - name: Free disk space
+        if: runner.os == 'Linux'
+        run: |
+          df -h
+          sudo apt-get remove -y '^dotnet-.*'
+          sudo apt-get remove -y '^llvm-.*'
+          sudo apt-get remove -y 'php.*'
+          sudo apt-get remove -y '^mongodb-.*'
+          sudo apt-get remove -y '^mysql-.*'
+          sudo apt-get remove -y azure-cli google-cloud-cli google-chrome-stable firefox powershell mono-devel libgl1-mesa-dri
+          sudo apt-get autoremove -y
+          sudo apt-get clean
+          df -h
+          sudo rm -rf /usr/local/lib/android || true
+          sudo rm -rf /usr/share/dotnet || true
+          sudo rm -rf /opt/ghc || true
+          sudo rm -rf /usr/local/.ghcup || true
+          sudo rm -rf /opt/hostedtoolcache/CodeQL || true
+          sudo docker system prune --all --volumes --force
+          sudo apt-get clean
+          sudo rm -rf /var/lib/apt/lists/*
+          df -h
+
       - name: Cache MLIR build
         id: cache-mlir
         uses: actions/cache@v4