[test] checks whether changing the order actually helps (as implied b…

…y the error message)

Error message: "Error: Can't find 'action.yml', 'action.yaml' or 'Dockerfile' under '/home/runner/work/flink/flink/.github/actions/set_java_in_container'. Did you forget to run actions/checkout before running your local action?"

.github/workflows/flink-ci-template.yml

@@ -62,15 +62,16 @@ jobs:
       options: --init
 
     steps:
+      - name: "Flink Checkout"
+        uses: actions/checkout@v3
+        with:
+          persist-credentials: false
+
       - name: "Set JDK version to Java ${{ inputs.jdk-version }}"
         uses: "./.github/actions/set_java_in_container"
         with:
           jdk-version: ${{ inputs.jdk-version }}
 
-      - name: "Flink Checkout"
-        uses: actions/checkout@v3
-        with:
-          persist-credentials: false
       - name: "Codestyle"
         run: |
           ${{ inputs.environment }} ./tools/ci/validate.sh "checkstyle:check spotless:check -T2" || exit $?