[sweep] Inconsistent Gh prefix usage

**Finding:** `naming-001`

GitHub-related types use Gh prefix (GhIssue, GhLabel, GhRelease) but method Gh() is just a shorthand for gh CLI. Consider renaming method to RunGh or GhRun for clarity

**Location:** cli/Program.cs:2139
**Severity:** low

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*Generated by `mill sweep`*