chore(label): add test as valid start label for PR

.github/workflows/lint-PR-title.yml

@@ -17,7 +17,7 @@ jobs:
         id: regex-match
         with:
           text: ${{ github.event.pull_request.title }}
-          regex: '(?:add|update|task|chore|feat|fix|refactor)\([a-z-A-Z]+\):\s.+'
+          regex: '(?:add|update|task|test|chore|feat|fix|refactor)\([a-z-A-Z]+\):\s.+'
 
       - uses: actions-ecosystem/action-create-comment@v1
         if: ${{ steps.regex-match.outputs.match == '' }}