ci: deletes old comments when new appimage is uploaded

This commit updates the AppImage workflow to delete older comments
that publish the link to the artifacts before adding the new comment
ensuring that there's always one latest comment with the link to the
last successful AppImage build on a PR.

Wrike Ticket: https://www.wrike.com/open.htm?id=1130198233

.github/workflows/upload-appimage.yml

@@ -34,8 +34,44 @@ jobs:
           if-no-files-found: error
           retention-days: 15
 
-      - name: Artifact Comment on PR
+      - name: Install GitHub CLI
+        run: |
+          sudo apt-get update
+          sudo apt-get install gh
+
+      - name: Edit the last bot comment
+        id: edit-comment
         if: github.event_name == 'pull_request'
+        run: |
+          set -e
+          gh pr comment $PR_NUMBER --edit-last -b "
+          **🤖 Pull Request [Artifacts](https://github.com/rapyuta-robotics/rapyuta-io-cli/actions/runs/"$RUN_ID") (#"$RUN_ID") 🎉**
+          "
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          RUN_ID: ${{ github.run_id }}
+          PR_NUMBER: ${{ github.event.number }}
+        continue-on-error: true
+
+
+      - name: Delete existing bot comments
+        if: steps.edit-comment.outcome == 'failure'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          PR_NUMBER: ${{ github.event.number }}
+        run: |
+          # Get all comments on the PR where the author is the bot
+          COMMENTS=$(gh api repos/${{ github.repository }}/issues/$PR_NUMBER/comments --jq '.[] | select(.user.login == "github-actions[bot]") | .id')
+      
+          # Loop through each bot comment and delete it
+          for COMMENT_ID in $COMMENTS; do
+            gh api repos/${{ github.repository }}/issues/comments/$COMMENT_ID -X DELETE
+          done
+
+
+      - name: Artifact Comment on PR
+        # if: github.event_name == 'pull_request'
+        if: steps.edit-comment.outcome == 'failure'
         run: |
           gh pr comment $PR_NUMBER -b  "
           **🤖 Pull Request [Artifacts](https://github.com/rapyuta-robotics/rapyuta-io-cli/actions/runs/"$RUN_ID") (#"$RUN_ID") 🎉**