test case indicates that relp connection is opened twice but closed only once

[kortemik]

Description
from #38 (comment)

tcpdump indicates that relp connection is opened twice:

1 open 53 
relp_version=0
relp_software=RLP-01
commands=syslog

1 rsp 86 200 OK
relp_version=0
relp_software=rlp_03,9.0.0,https://teragrep.com
commands=syslog

1 open 53 
relp_version=0
relp_software=RLP-01
commands=syslog

1 rsp 86 200 OK
relp_version=0
relp_software=rlp_03,9.0.0,https://teragrep.com
commands=syslog

2 syslog 75 <12>1 2024-11-26T10:00:12.366Z localhost appName - - - DEBUG logger - none

2 rsp 6 200 OK

3 close 0

3 rsp 0 
0 serverclose 0 

[kortemik]

this is a bug in the reconnectIfNoMessagesInterval handling. this triggers on the first run:
https://github.com/teragrep/jla_01/blob/master/src/main/java/com/teragrep/jla_01/RlpLogbackAppender.java#L300-L306