Use own ccache-action, clean up

Author: krlmlr

.github/workflows/install/action.yml

@@ -85,7 +85,7 @@ runs:
       shell: bash
 
     - name: Install ccache
-      uses: hendrikmuhs/ccache-action@v1.2.10
+      uses: krlmlr/ccache-action@parallel-dir
       with:
         max-size: 10G
         verbose: 1
@@ -110,4 +110,8 @@ runs:
         # mkdir -p $(dirname $(pwd))/.ccache-debug
 
         echo 'PKG_BUILD_EXTRA_FLAGS=false' | tee -a $GITHUB_ENV
+
+        # Repair
+        git rm -rf .ccache || true
+        rm -rf .ccache
       shell: bash