fix(gorgone): fd leak

[kduret]

Description

Migrated from centreon/centreon#3775

Since gorgone 23.10.x, there is a file descriptor leak when gorgone cannot connect pollers.

The bug was found on rhel 8 (but it should be on debian also)

Type of change

• Patch fixing an issue (non-breaking change)
• New functionality (non-breaking change)
• Breaking change (patch or feature) that might cause side effects breaking part of the Software

Target serie

• 22.04.x
• 22.10.x
• 23.04.x
• 23.10.x
• 24.04.x (master)

How this pull request can be tested ?

• Install a centreon 23.10.x with distant pollers
• stop pollers (central gorgone cannot connect)

Wait and check file descriptors count with the following command on central server:

for pid in $(ps aux | grep gorgone-proxy | grep -v grep | awk '{ print $2 }') ; do num=$(lsof | grep $pid | wc -l); echo "process $pid number of fd: $num" ; done

Checklist

Community contributors & Centreon team

• I have followed the coding style guidelines provided by Centreon
• I have commented my code, especially new classes, functions or any legacy code modified. (docblock)
• I have commented my code, especially hard-to-understand areas of the PR.
• I have rebased my development branch on the base branch (master, maintenance).

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[kduret]

already fixed