chore(pr-linter): use github-actions bot to write to PRs (aws#22152)

temp fix until we can get the aws-cdk-automation working correctly on this.


----

### All Submissions:

* [ ] Have you followed the guidelines in our [Contributing guide?](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md)

### Adding new Unconventional Dependencies:

* [ ] This PR adds new unconventional dependencies following the process described [here](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md/#adding-new-unconventional-dependencies)

### New Features

* [ ] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/main/INTEGRATION_TESTS.md)?
	* [ ] Did you use `yarn integ` to deploy the infrastructure and generate the snapshot (i.e. `yarn integ` without `--dry-run`)?

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

.github/workflows/pr-linter.yml

@@ -29,5 +29,5 @@ jobs:
       - name: Validate
         uses: ./tools/@aws-cdk/prlint
         env:
-          GITHUB_TOKEN: ${{ secrets.PROJEN_GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           REPO_ROOT: ${{ github.workspace }}

tools/@aws-cdk/prlint/lint.ts

@@ -145,7 +145,7 @@ export class PullRequestLinter {
   private async dismissPreviousPRLinterReviews(): Promise<void> {
     const reviews = await this.client.listReviews(this.prParams);
     reviews.data.forEach(async (review: any) => {
-      if (review.user?.login === 'aws-cdk-automation' && review.state !== 'DISMISSED') {
+      if (review.user?.login === 'github-actions[bot]' && review.state !== 'DISMISSED') {
         await this.client.dismissReview({
           ...this.prParams,
           review_id: review.id,

tools/@aws-cdk/prlint/test/lint.test.ts

@@ -314,7 +314,7 @@ function configureMock(issue: any, prFiles: any[] | undefined): linter.PullReque
     },
 
     listReviews(_props: { _owner: string, _repo: string, _pull_number: number }) {
-      return { data:  [{ id: 1111122222, user: { login: 'aws-cdk-automation' }, state: 'CHANGES_REQUESTED' }] };
+      return { data:  [{ id: 1111122222, user: { login: 'github-actions[bot]' }, state: 'CHANGES_REQUESTED' }] };
     },
 
     dismissReview() {},