refactor: remove banned std::to_string() calls (#41109)

* refactor: do not use banned std::to_string() in ServiceWorkerContext::GetAllRunningWorkerInfo()

Co-authored-by: Charles Kerr <charles@charleskerr.com>

* refactor: do not use banned std::to_string() in REPORT_AND_RETURN_IF_FAILED()

Co-authored-by: Charles Kerr <charles@charleskerr.com>

* refactor: do not use banned std::to_string() in JSChunkedDataPipeGetter::OnWriteChunkComplete()

Co-authored-by: Charles Kerr <charles@charleskerr.com>

* refactor: do not use banned std::to_string() in SetCrashKey()

Co-authored-by: Charles Kerr <charles@charleskerr.com>

* chore: remove unused #include

Co-authored-by: Charles Kerr <charles@charleskerr.com>

* fixup! refactor: do not use banned std::to_string() in REPORT_AND_RETURN_IF_FAILED()

Co-authored-by: Charles Kerr <charles@charleskerr.com>

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Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: Charles Kerr <charles@charleskerr.com>