invalid guard policy: 'github.repos' is required...' should not be given when there's only one repo

[dsyme]

Using a simple declataion like

tools:
  github:
    min-integrity: none 

gives this. But no repos declaration should really be needed here - it's obvious that the policy applies to the current repo

/home/dsyme/agentics/workflows/ai-moderator.md: invalid guard policy: 'github.repos' is required. Use 'all', 'public', or an array of repository patterns (e.g., ['owner/repo', 'owner/*'])

So the repos declaration should just not be needed unless there are multiple repos in play

[pelikhan]

@copilot if the repos is not specified, set repos: all value