Function run_warmup_phase 

async fn run_warmup_phase(
    git_manager: &GitManager,
    compilation_manager: &CompilationManager,
    node_manager: &mut NodeManager,
    benchmark_runner: &BenchmarkRunner,
    args: &Args,
    is_optimism: bool,
    baseline_commit: &str,
) -> Result<()>

Run warmup phase to warm up caches before benchmarking