Gradle Check Optimization (opensearch-project#13786)

Signed-off-by: Prudhvi Godithi <[email protected]>

.github/workflows/gradle-check.yml

@@ -39,6 +39,22 @@ jobs:
           echo "pr_number=$(jq --raw-output .pull_request.number $GITHUB_EVENT_PATH)" >> $GITHUB_ENV
           echo "pr_owner=$(jq --raw-output .pull_request.user.login $GITHUB_EVENT_PATH)" >> $GITHUB_ENV
           echo "pr_or_commit_description=$(jq --ascii-output .pull_request.body $GITHUB_EVENT_PATH)" >> $GITHUB_ENV
+          echo "post_merge_action=false" >> $GITHUB_ENV
+
+      # to get the PR data that can be used for post merge actions
+      - uses: actions/github-script@v7
+        if: github.event_name == 'push'
+        id: get_pr_data
+        with:
+          github-token: ${{secrets.GITHUB_TOKEN}}
+          script: |
+            return (
+              await github.rest.repos.listPullRequestsAssociatedWithCommit({
+                commit_sha: context.sha,
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+              })
+            ).data[0];
 
       - name: Setup environment variables (Push)
         if: github.event_name == 'push'
@@ -53,8 +69,9 @@ jobs:
           echo "pr_to_clone_url=$repo_url" >> $GITHUB_ENV
           echo "pr_title=Push trigger $branch_name $ref_id $repo_url" >> $GITHUB_ENV
           echo "pr_owner=$(jq --raw-output '.commits[0].author.username' $GITHUB_EVENT_PATH)" >> $GITHUB_ENV
-          echo "pr_number=Null" >> $GITHUB_ENV
+          echo 'pr_number=${{ fromJson(steps.get_pr_data.outputs.result).number }}' >> $GITHUB_ENV
           echo "pr_or_commit_description=$(jq --ascii-output .head_commit.message $GITHUB_EVENT_PATH)" >> $GITHUB_ENV
+          echo "post_merge_action=true" >> $GITHUB_ENV
 
       - name: Checkout opensearch-build repo
         uses: actions/checkout@v4