ci: remove old deploy comments to keep pr clean

Author: cdransf

.github/workflows/azure-static-web-apps-polite-cliff-0173aa90f.yml

@@ -24,17 +24,21 @@ jobs:
           submodules: true
           lfs: false
       - name: Delete old deploy comments
-        run: |
-          $pr = "${{ github.event.pull_request.number }}"
-          gh api repos/${{ github.repository }}/issues/$pr/comments `
-            | ConvertFrom-Json `
-            | Where-Object body -like 'Azure Static Web Apps: Your stage site is ready! Visit it here: *' `
-            | ForEach-Object {
-                gh api repos/${{ github.repository }}/issues/comments/$($_.id) -X DELETE
-              }
-        shell: pwsh
+        if: github.event_name == 'pull_request'
+        shell: bash
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          pr=${{ github.event.pull_request.number }}
+          comments=$(gh api repos/${{ github.repository }}/issues/$pr/comments)
+          echo "$comments" | jq -c '.[]' | while read -r comment; do
+            body=$(echo "$comment" | jq -r '.body')
+            id=$(echo "$comment" | jq -r '.id')
+            if [[ "$body" == Azure\ Static\ Web\ Apps:* ]]; then
+              echo "Deleting comment $id"
+              gh api repos/${{ github.repository }}/issues/comments/$id -X DELETE
+            fi
+          done
       - name: Build and deploy to Azure static web apps
         id: builddeploy
         uses: Azure/static-web-apps-deploy@v1