try this

.github/workflows/test-action.yml

@@ -1,24 +1,19 @@
-name: Test action
+name: Try me
 on:
-  issues:
+  pull_request:
     types: labeled
 jobs:
   test-action:
-    if: github.event.label.name == 'lorem ipsum'
+    if: github.event.label.name == 'try me'
     permissions:
-      issues: write
+      pull-requests: write
     runs-on: ubuntu-latest
     steps:
-      - run: gh issue comment "$NUMBER" --body "$BODY"
+      - run: gh pr close "$NUMBER" --comment "$COMMENT"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           GH_REPO: ${{ github.repository }}
           NUMBER: ${{ github.event.issue.number }}
-          BODY: >
+          COMMENT: >
             Lorem ipsum is placeholder text commonly used in the graphic, print,
             and publishing industries for previewing layouts and visual mockups.
-      - run: gh issue close "$NUMBER" --repo "$REPO"
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          GH_REPO: ${{ github.repository }}
-          NUMBER: ${{ github.event.issue.number }}

README.md

@@ -1,12 +1,12 @@
-# Create GitHub Issue comment
+# Create name: Close GitHub Pull Request
 
-💬 Create a new comment on a GitHub Issue
+❌ Close a GitHub Pull Request as unmerged
 
 <p align=center>
   <img src="https://i.imgur.com/ZFJpji1.png">
 </p>
 
-👨‍💻 Use the [GitHub CLI](https://cli.github.com/) \
+👨‍💻 Use the [GitHub CLI] \
 😱 You don't even need a GitHub Action to do it!
 
 ## Usage
@@ -22,43 +22,36 @@ jobs:
   lorem-ipsum-comment:
     if: github.event.label.name == 'lorem ipsum'
     permissions:
-      issues: write
+      pull-requests: write
     runs-on: ubuntu-latest
     steps:
-      - run: gh issue comment "$NUMBER" --body "$BODY"
+      - run: gh pr close "$NUMBER" --comment "$COMMENT"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           GH_REPO: ${{ github.repository }}
           NUMBER: ${{ github.event.issue.number }}
-          BODY: >
+          COMMENT: >
             Lorem ipsum is placeholder text commonly used in the graphic, print,
             and publishing industries for previewing layouts and visual mockups.
 ```
 
-[➕ Create a new Issue and try it out!](https://github.com/actions4gh/create-issue-comment/issues/new?assignees=&labels=lorem+ipsum&projects=&template=try-it.yml&title=Try+it%21)
-
 💡 The GitHub CLI is always provided on all GitHub runners. To install it on
-custom runners check out [actions4gh/setup-github-cli].
+custom runners check out [actions4gh/setup-gh].
 
 ```sh
-gh issue comment {<number> | <url>} [flags]
+gh pr close {<number> | <url> | <branch>} [flags]
 ```
 
 **`gh issue comment` options:** <sup>(excerpt)</sup>
 
-- **`-b`, `--body <text>`:** The comment body text
-
-- **`-F`, `--body-file <file>`:** Read body text from file (use "-" to read from
-  standard input)
+- **`-c`, `--comment <string>`:** Leave a closing comment
 
-- **`--edit-last`:** Edit the last comment of the same author
+- **`-d`, `--delete-branch`:** Delete the local and remote branch after close
 
 - **`-R`, `--repo <[HOST/]OWNER/REPO>`:** Select another repository using the
   `[HOST/]OWNER/REPO` format
 
-[📚 gh issue comment | GitHub CLI](https://cli.github.com/manual/gh_issue_comment)
+[📚 gh pr close | GitHub CLI](https://cli.github.com/manual/gh_pr_close)
 
-<!-- prettier-ignore-start -->
-[actions4gh/update-issue-comment]: https://github.com/actions4gh/update-issue-comment#readme
-[actions4gh/setup-github-cli]: https://github.com/actions4gh/setup-github-cli#readme
-<!-- prettier-ignore-end -->
+[github cli]: https://cli.github.com/
+[actions4gh/setup-gh]: https://github.com/actions4gh/setup-gh

action.yml

@@ -1,6 +1,6 @@
-name: Create GitHub Issue comment
-description: 💬 Create a new comment on a GitHub Issue
+name: Close GitHub Pull Request
+description: ❌ Close a GitHub Pull Request as unmerged
 
 branding:
-  icon: message-square
+  icon: x
   color: blue