fix(dev-infra): detect all commit message keywords that can close a PR (#39229)

Previously, the `isCommitClosingPullRequest()` method (used in
`ng-dev release` to detect whether a commit is closing a PR based on
keywords found in the commit message) was only able to detect a subset
of the keywords supported by GitHub.

This is fine currently, because the merge script adds `PR Close #XYZ`
when merging a PR, but it might break in the future.

This commit makes the code more robust by ensuring the method can detect
all keywords supported by GitHub for automatically closing a PR based on
a commit message.

Original discussion:
https://github.com/angular/angular/pull/39135#discussion_r503440973

PR Close #39229

dev-infra/release/publish/pull-request-state.ts

@@ -68,5 +68,6 @@ async function isCommitClosingPullRequest(api: GitClient, sha: string, id: numbe
   const {data} = await api.github.repos.getCommit({...api.remoteParams, ref: sha});
   // Matches the closing keyword supported in commit messages. See:
   // https://docs.github.com/en/enterprise/2.16/user/github/managing-your-work-on-github/closing-issues-using-keywords.
-  return data.commit.message.match(new RegExp(`close[sd]? #${id}(?!\\d)`, 'i'));
+  return data.commit.message.match(
+      new RegExp(`(?:close[sd]?|fix(?:e[sd]?)|resolve[sd]?):? #${id}(?!\\d)`, 'i'));
 }