try to fix ccache

.forgejo/workflows/test.yml

@@ -37,11 +37,17 @@ jobs:
       - name: Cache ccache dir
         uses: https://code.forgejo.org/actions/cache@v3
         with:
-          path: ~/.ccache
+          path: .ccache
           key: ${{ runner.os }}-${{ github.sha }}
           restore-keys: |
             ${{ runner.os }}-
-      - run: |
+      - name: Setup ccache
+        run: |
+          ccache --set-config=cache_dir="${{ github.workspace }}/.ccache"
+          ccache --set-config=compression=true
+          ccache --set-config=compression_level=6
+          ccache -M 4G
+          ccache -z
           export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
           echo "$PATH" >> "$GITHUB_PATH"
       - run: |