Test default branch fix for enable-fork-prs

[danenania]

Testing that enable-fork-prs works with repos using master as default branch

[promptfoo-scanner-staging]

👍 All Clear

I reviewed this PR for LLM security vulnerabilities across the six defined categories (Prompt Injection, Data Exfiltration, PII/Secrets in Prompts, Insecure Output Handling, Excessive Agency, and Jailbreak Risks). The PR adds a test file with a command injection pattern, but there is no LLM involvement in the code - no LLM API calls, prompt construction, output handling, or agent capabilities. Since this scanner focuses exclusively on LLM-specific security issues, no findings were identified.

_{Minimum severity threshold for this scan: 🟡 Medium | Learn more}

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