Resolve CodeQL csharp analyze failure when default setup is enabled

[Copilot]

The CodeQL / Analyze (csharp) (pull_request) job was failing after analysis upload because GitHub code scanning rejected SARIF from an advanced CodeQL workflow while default setup is enabled for the repository.

• Root cause

  • The workflow used github/codeql-action/analyze@v3 with default upload behavior, which conflicts with repositories using CodeQL default setup.

• Workflow change

  • Updated .github/workflows/codeql-analysis.yml to disable SARIF upload from this advanced workflow:
    • Added with: upload: false on the Perform CodeQL Analysis step.

• Resulting behavior

  • The workflow still runs CodeQL analysis, but no longer attempts the incompatible upload path that caused processing failure.

- name: Perform CodeQL Analysis
  uses: github/codeql-action/analyze@v3
  with:
    upload: false