Github CI workflow fix

[BOHEUS]

No description provided.

[greptile-apps]

PR Summary

This PR enhances the CI demo check workflow with improvements to its triggering mechanisms and test command reliability.

• Added workflow_dispatch trigger in .github/workflows/ci-demo-check.yml to enable manual workflow runs
• Fixed test command by adding quotes around @demo-only grep pattern to prevent pattern matching issues
• Renamed workflow from "CI demo check" to "CI Demo check" for consistency

_{💡 (4/5) You can add custom instructions or style guidelines for the bot here!}

_{1 file(s) reviewed, no comment(s)
Edit PR Review Bot Settings | Greptile}