build: delete gradle缓存

Author: linyimin0812

.github/workflows/build.yml

@@ -29,6 +29,7 @@ jobs:
           path: ~/.gradle/caches
           key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
           restore-keys: ${{ runner.os }}-gradle
+          action: 'delete'
       - name: Build and analyze
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}  # Needed to get PR information, if any