Search for the release maintenance issue

Author: pmkovar

.github/workflows/generate-release-maintenance.yaml

@@ -28,6 +28,7 @@ jobs:
     permissions:
       contents: write
       pull-requests: write
+      issues: read
 
     steps:
       - name: Checkout code
@@ -75,14 +76,23 @@ jobs:
 
           PR_NUMBER=$(gh pr list --head "$BRANCH_NAME" --base "$BASE_BRANCH" --json number,headRepositoryOwner --jq ".[] | select(.headRepositoryOwner.login == \"$FORK_OWNER\") | .number" | head -n 1)
 
+          # Search for the release maintenance issue
+          ISSUE_NUMBER=$(gh issue list --repo "$GH_REPO" --search "\"$VERSION\" \"Rancher Manager Release Maintenance Task Checklist\" in:title is:open" --json number --jq '.[0].number')
+
+          PR_BODY="Automated release maintenance updates for version $VERSION."$'\n'"Command executed: \`./release-maintenance.sh -t \"$TAG\" -d \"$DATE\" --prime \"$PRIME\" --community \"$COMMUNITY\"\`"
+
+          if [[ -n "$ISSUE_NUMBER" && "$ISSUE_NUMBER" != "null" ]]; then
+            PR_BODY="$PR_BODY"$'\n\n'"Relates to #$ISSUE_NUMBER"
+          fi
+
           if [[ -n "$PR_NUMBER" && "$PR_NUMBER" != "null" ]]; then
             gh pr edit "$PR_NUMBER" \
               --title "$VERSION - Release Maintenance" \
-              --body "Automated release maintenance updates for version $VERSION."$'\n'"Command executed: \`./release-maintenance.sh -t \"$TAG\" -d \"$DATE\" --prime \"$PRIME\" --community \"$COMMUNITY\"\`"
+              --body "$PR_BODY"
           else
             PR_URL=$(gh pr create \
               --title "$VERSION - Release Maintenance" \
-              --body "Automated release maintenance updates for version $VERSION."$'\n'"Command executed: \`./release-maintenance.sh -t \"$TAG\" -d \"$DATE\" --prime \"$PRIME\" --community \"$COMMUNITY\"\`" \
+              --body "$PR_BODY" \
               --base "$BASE_BRANCH" \
               --head "${FORK_OWNER}:${BRANCH_NAME}")
             PR_NUMBER=${PR_URL##*/}