ci: Fix Jira sync action (action setting based on standard boilerplate)

.github/workflows/new_prs.yml

@@ -1,16 +1,25 @@
-name: Sync PRs to JIRA
+name: Sync remain PRs to Jira
 
-# This workflow will be triggered when a pull request is opened
-on: pull_request
+# This workflow will be triggered every hour, to sync remaining PRs (i.e. PRs with zero comment) to Jira project
+# Note that, PRs can also get synced when new PR comment is created
+on:
+  schedule:
+    - cron: "0 * * * *"
+
+# Limit to single concurrent run for workflows which can create Jira issues.
+# Same concurrency group is used in issue_comment.yml
+concurrency: jira_issues
 
 jobs:
   sync_prs_to_jira:
     name: Sync PRs to Jira
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v2
       - name: Sync PRs to Jira project
         uses: espressif/github-actions/sync_issues_to_jira@master
+        with:
+          cron_job: true
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           JIRA_PASS: ${{ secrets.JIRA_PASS }}