Fix missing tsc.js in command args for non-native tsc benchmarks

[Copilot]

Non-tsgo tsc benchmarks fail immediately because tsc.js is never added to the node command line. The resulting command is node --expose-gc -b /path/to/suite/... --diagnostics instead of node --expose-gc /path/to/tsc.js -b /path/to/suite/... --diagnostics.

The tsgo refactor split runCompilerScenario into native (binary is the executable) vs non-native (node is the executable, needs tsc.js as first arg) paths, but the non-native path never adds tsc.js to args.

• Add .addIf(!nativeBin && !usesPublicApi, tsc) for the benchmark command builder
• Add .addIf(!nativeBin, tsc) for the clean command builder

const { cmd, args, hasBuild } = new CommandLineArgumentsBuilder(
    expansion,
    nativeBin ? tsc : host,
    /*exposeGc*/ undefined,
    options.cpus,
    options.predictable,
)
    .addIf(!nativeBin && !usesPublicApi, tsc)
    .addIf(usesPublicApi, tscPublicWrapper, typescript)
    .addCompilerOptions(options, scenario)
    .add("--diagnostics");

For comparison, runStartupScenario and runTSServerScenario already correctly add their entry points (.add(entrypoint) and .add(path.join(__dirname, "measuretsserver.js")) respectively).