Update listener.yml (#905)

Author: ajrice6713

.github/workflows/listener.yml

@@ -48,7 +48,7 @@ jobs:
         with:
           script: |
             github.rest.issues.createComment({
-              issue_number: ${{ github.event.client_payload.prNumber }},
+              issue_number: '${{ github.event.client_payload.prNumber }}',
               owner: 'Bandwidth',
               repo: '${{ github.event.client_payload.originRepo }}',
               body: 'Preview site: http://${{ env.BRANCH_NAME }}.staging-dev.bandwidth.com/\nPlease note that it may take a couple minutes for your preview site to become available.\n\nSee the corresponding PR opened on the docsite repository (no action required):\nhttps://github.com/Bandwidth/api-docs/pull/${{ env.PR_NUMBER }}'
@@ -95,7 +95,7 @@ jobs:
           github-token: ${{ secrets.DX_GITHUB_TOKEN }}
           script: |
             github.rest.issues.createComment({
-              issue_number: ${{ env.PR_NUMBER }},
+              issue_number: '${{ env.PR_NUMBER }}',
               owner: context.repo.owner,
               repo: context.repo.repo,
               body: 'Failed to auto-merge this PR. Check workflow logs for more information'
@@ -124,7 +124,7 @@ jobs:
         with:
           script: |
             github.rest.issues.createComment({
-              issue_number: ${{ env.PR_NUMBER }},
+              issue_number: '${{ env.PR_NUMBER }}',
               owner: 'Bandwidth',
               repo: 'api-docs',
               body: 'Corresponding Pull Request on [${{ github.event.client_payload.originRepo }}](https://github.com/Bandwidth/${{ github.event.client_payload.originRepo }}/pull/${{ github.event.client_payload.prNumber }}) was closed.'