ci: add disk cleanup step to fix runner space issues

Author: Tuntii

.github/workflows/ci.yml

@@ -69,6 +69,14 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
+      - name: Free disk space
+        run: |
+          sudo rm -rf /usr/share/dotnet
+          sudo rm -rf /opt/ghc
+          sudo rm -rf /usr/local/share/boost
+          sudo rm -rf "$AGENT_TOOLSDIRECTORY"
+          df -h
+
       - uses: actions/checkout@v4
 
       - name: Install Rust