chore: update stuninput targets (#1752)

## Checklist

- [x] I have read the [contribution
guidelines](https://github.com/ooni/probe-cli/blob/master/CONTRIBUTING.md)
- [x] reference issue for this pull request: #1745 
- [ ] if you changed anything related to how experiments work and you
need to reflect these changes in the ooni/spec repository, please link
to the related ooni/spec pull request: <!-- add URL here -->
- [ ] if you changed code inside an experiment, make sure you bump its
version number

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## Description

This diff updates stuninput targets to the latest list extracted from
https://gitlab.torproject.org/tpo/applications/tor-browser-build/-/blob/main/projects/tor-expert-bundle/pt_config.json

Author: DecFox

internal/stuninput/stuninput.go

@@ -12,7 +12,6 @@ import (
 //
 // We should sync with https://gitlab.torproject.org/tpo/applications/tor-browser-build/-/blob/main/projects/tor-expert-bundle/pt_config.json
 var inputs = map[string]bool{
-	"stun.antisip.com:3478":   true,
 	"stun.epygi.com:3478":     true,
 	"stun.uls.co.za:3478":     true,
 	"stun.voipgate.com:3478":  true,