enh(plugin): add Centreon header for Meraki api calls

[sdepassio]

Centreon team

Description

Add partner key to Meraki API calls

Fixes CTOR-864

Checklist

• [ ] I have followed the coding style guidelines provided by Centreon
• [ ] I have commented my code, especially hard-to-understand areas of the PR.
• [ ] I have rebased my development branch on the base branch (develop).
• [ ] In case of a new plugin, I have created the new packaging directory accordingly.
• [ ] I have implemented automated tests related to my commits.
• [ ] I have reviewed all the help messages in all the .pm files I have modified.
  • [ ] All sentences begin with a capital letter.
  • [ ] All sentences are terminated by a period.
  • [ ] I am able to understand all the help messages, if not, exchange with the PO or TW to rewrite them.
• [ ] After having created the PR, I will make sure that all the tests provided in this PR have run and passed.