Build/Test Tools: Account for Core-{n} ticket references.

This expands the pull request cleanup action to also account for the `Core-{n}` pattern. This pattern dynamically links to Trac tickets without having to explicitly provide the ticket URL and are not detected in the current workflow logic.

Props yogeshbhutkar, johnbillion.
Fixes #63081.

git-svn-id: https://develop.svn.wordpress.org/trunk@60110 602fd350-edb4-49c9-b593-d223f7449a82

Author: desrosj

.github/workflows/reusable-cleanup-pull-requests.yml

@@ -54,7 +54,9 @@ jobs:
             let prNumbers = [];
 
             for (const ticket of fixedList) {
-              const query = 'is:pr is:open repo:' + context.repo.owner + '/' + context.repo.repo + ' in:body https://core.trac.wordpress.org/ticket/' + ticket;
+              const tracTicketUrl = `https://core.trac.wordpress.org/ticket/${ ticket }`;
+              const corePrefix = `Core-${ ticket }`;
+              const query = `is:pr is:open repo:${ context.repo.owner }/${ context.repo.repo } in:body ${ tracTicketUrl } OR ${ corePrefix }`;
               const result = await github.rest.search.issuesAndPullRequests({ q: query });
 
               prNumbers = prNumbers.concat(result.data.items.map(pr => pr.number));