fix(deps): pin get-port in renovate config

[cubeghost]

Summary

#6531

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[github-actions]

📊 Benchmark results

Comparing with 9d81892

• Dependency count: 1,364 ⬇️ 0.22% decrease vs. 9d81892
• Package size: 311 MB ⬇️ 0.26% decrease vs. 9d81892
• Number of ts-expect-error directives: 998 (no change)