更新 GitHub Actions 工作流，添加 Java 测试缓存和 Redis 服务测试，删除不再使用的工作流

.github/workflows/cache.yaml.off

@@ -0,0 +1,22 @@
+on:
+  push:
+
+jobs:
+  Cache-Java-Test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-java@v4
+        with:
+          distribution: "adopt"
+          java-version: 17
+      - run: java -version
+  opt_hostedtoolcache:
+    needs: [Cache-Java-Test]
+    runs-on: ubuntu-latest
+    steps:
+      - run: ls -lha /opt/hostedtoolcache
+      - run: ls -lha /opt/hostedtoolcache/node || true
+      - run: ls -lha /opt/hostedtoolcache/pnpm-store || true
+      - run: env
+
+# https://about.gitea.com/resources/tutorials/enable-gitea-actions-cache-to-accelerate-cicd$0