ci(actions): bump GitHub Actions dependencies

- Upgrade codecov/codecov-action from v5 to v6
- Upgrade niden/actions-memcached from v7 to v8
- Upgrade supercharge/redis-github-action from 1.8.0 to 1.8.1
- Upgrade supercharge/mongodb-github-action from 1.12.0 to 1.12.1

Author: appleboy

.github/workflows/testing.yml

@@ -19,12 +19,12 @@ jobs:
 
     steps:
       - name: Start Redis
-        uses: supercharge/redis-github-action@1.8.0
+        uses: supercharge/redis-github-action@1.8.1
         with:
           redis-version: 4
 
       - name: Start MongoDB 4.2
-        uses: supercharge/mongodb-github-action@1.12.0
+        uses: supercharge/mongodb-github-action@1.12.1
         with:
           mongodb-version: 4.2
 
@@ -36,7 +36,7 @@ jobs:
           postgresql password: testpw
           postgresql version: "14"
 
-      - uses: niden/actions-memcached@v7
+      - uses: niden/actions-memcached@v8
 
       - name: Set up Go ${{ matrix.go }}
         uses: actions/setup-go@v6
@@ -53,7 +53,7 @@ jobs:
           go test -v -covermode=atomic -coverprofile=coverage.out ./...
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
 
   vulnerability-scanning:
     runs-on: ubuntu-latest