NO-ISSUE fix: if expression

.gitea/workflows/pr-title-check.yaml

@@ -14,7 +14,8 @@ jobs:
       - name: Check PR title
         run: |
           title="${{ gitea.event.pull_request.title }}"
-          if [[ ! "$title" =~ "^(BLOG-[0-9]+|NO-ISSUE) [A-Z].+$" ]]; then
+          echo "Checking PR title: $title"
+          if [[ ! "$title" =~ ^(BLOG-[0-9]+|NO-ISSUE) [A-Z].+$ ]]; then
             echo 'The title is not meet the format `BLOG-XXX Title title title`'
             exit 1
           else