fix: Update auto-merge.sh

Author: ldetmer

auto-merge/auto-merge.sh

@@ -19,9 +19,15 @@ merge_pr() {
       local response=$(curl -s -H "Authorization: token $token" -H "Accept: application/vnd.github+json" "https://api.github.com/repos/$REPO/pulls/$pr_number")
       # Check if the PR is mergeable
       if jq -e '.mergeable' <<< "$response" > /dev/null; then
-          curl -s -X PUT -H "Authorization: token $token" -H "Accept: application/vnd.github+json" "https://api.github.com/repos/$REPO/pulls/$pr_number/merge" > /dev/null
-          echo "Merged PR #$pr_number"
-          break
+          local merge_response=$(curl -s -X PUT -H "Authorization: token $token" -H "Accept: application/vnd.github+json" "https://api.github.com/repos/$REPO/pulls/$pr_number/merge" 2>&1)
+          if [[ "$merge_response" == *"message"* ]]; then
+            echo "Error merging PR #$pr_number:"
+            echo "$merge_response" | jq . 
+            sleep 60
+          else
+            echo "Merged PR #$pr_number"
+            return 0
+          fi
       else
         echo "PR #$pr_number is not mergeable"
         sleep 60