fix linter and output

Author: maxim-lobanov

.github/workflows/manual.yml

@@ -39,4 +39,4 @@ jobs:
         dry-run: '${{ github.event.inputs.dry-run }}'
 
     - run: |
-        '${{ steps.build-issue-dependencies-graph.mermaid-diagram }}' > $GITHUB_OUTPUT
+        '${{ steps.build-issue-dependencies-graph.outputs.mermaid-diagram }}' > $GITHUB_OUTPUT

src/main.ts

@@ -36,7 +36,7 @@ const run = async (): Promise<void> => {
         core.startGroup("Mermaid diagram");
         core.info(renderedContent);
         core.endGroup();
-        
+
         core.info("Preparing updated root issue content...");
         const updatedIssueContent = issueContentParser.replaceIssueContent(
             rootIssue,