test: remove fixed child-process deadlines from tests

239 literal timeoutMs values on cli.run and processes.run only restated
a guess at host speed. On hosted runners with four workers, cliOutput's
3-second value failed while the command still produced correct output.
Deadlines that are the behavior under test, derived from an operation
budget, or that bound a regression's wait remain.

Co-Authored-By: gensokyo-dev <342580529+gensokyo-dev@users.noreply.github.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/application/SetupClientConfiguration.nativeSyntax.test.ts

@@ -102,7 +102,6 @@ it("repairs equal-launcher Copilot JSONC syntax while strict JSON and standard J
       process.execPath,
       ["--import", "tsx", entrypoint],
       {
-        timeoutMs: 20_000,
         env: {
           PATH: process.env.PATH,
           SystemRoot: process.env.SystemRoot,