Adapt test expectation to cURL 7.73.0

cURL 7.73.0 introduced support for the MQTT protocol, so we have to
adapt our expectations regarding the supported protocols.

Author: cmb69

ext/curl/tests/check_win_config.phpt

@@ -48,7 +48,7 @@ PSL => No
 HTTPS_PROXY => Yes
 MULTI_SSL => %s
 BROTLI => %s
-Protocols => dict, file, ftp, ftps, gopher, http, https, imap, imaps, ldap, ldaps, pop3, pop3s, rtsp, scp, sftp, smb, smbs, smtp, smtps, telnet, tftp
+Protocols => dict, file, ftp, ftps, gopher, http, https, imap, imaps, ldap, ldaps, %r(mqtt, )?%rpop3, pop3s, rtsp, scp, sftp, smb, smbs, smtp, smtps, telnet, tftp
 Host => %s-pc-win32
 SSL Version => OpenSSL/%s
 ZLib Version => %s