add [neco] HL Coop to valve server list

[nurislamaibekuly]

---

^{Need help on this PR? Tag @codesmith-bot with what you need. Autofix is disabled.}

[github-actions]

Server list PR validation

✅ Ready to merge — 1 entry verified, no problems found.

Probed 1 new or changed entry.

Gamedir	Address	Change	Claimed	Responder	Host	Notes
valve	147.224.170.114:27016	new	49 (Xash)	49 (Xash)	[neco] HL Coop	✅ answered on the declared protocol.

---

_{Probes can be flaky on the first try; the nightly publish workflow re-probes with a 48 h grace window, so a single ❌ here is not necessarily fatal. Re-push to re-run.}