Seeking guidance on Upgrading Minimum Java Version for Main Branch

[sanjay dutt]

 The purpose of this email thread is to initiate a discussion about upgrading 
the minimum Java version (Could be same as Lucene minimum Java for main branch 
i.e. 21) for the main branch. We seek to understand the community's major 
concerns and gather their guidance on this matter.
Regards,Sanjay