Configurable access to archive searching in agent panel

[pboguslawski]

Proposed change

This mod introduces new SysConfig parameter Ticket::ArchiveSearchUserGroup that allowes archive searching only if user has rw access to group specified in its value (no restriction if Ticket::ArchiveSearchUserGroup is not defined).

Type of change

• '1 - 🚀 feature' - New feature (which adds functionality to an existing integration)

Additional information

Related: https://github.com/OTRS/otrs/pull/1847 Author-Change-Id: IB#1073066

Checklist

• [x] The code change is tested and works locally.(❗)
• [x] There is no commented out code in this PR.(❕)
• [ ] You improved or added new unit tests.(❕)
• [x] Local ZnunyCodePolicy passed.(❕)
• [x] Local UnitTests / Selenium passed.(❕)
• [ ] GitHub workflow CI (UnitTests / Selenium) passed.(❗)