Merge pull request #303 from ekapsner-ne/ek-ipv6-qa-fix

QA fix for make test on Ubuntu 26.04

tests/configs/ipv6.cfg

@@ -7,7 +7,7 @@ pid_file=run/nrpe.pid
 server_port=40321
 #server_address=127.0.0.1
 #server_address=0.0.0.0,::
-allowed_hosts=localhost
+allowed_hosts=127.0.0.1,::1
 
 dont_blame_nrpe=0
 allow_bash_command_substitution=0