RUMM-3256: Support building with Java 17

[0xnm]

What does this PR do?

This PR brings support of running and building the project with Java 17.

NOTE: Plugin artifact still has to emit Java 11 bytecode for the backward compatibility on the customer side.

Review checklist (to be filled by reviewers)

• [ ] Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• [ ] Make sure you discussed the feature or bugfix with the maintaining team in an Issue
• [ ] Make sure each commit and the PR mention the Issue number (cf the CONTRIBUTING doc)

[codecov-commenter]

Codecov Report

Merging #162 (ff2e946) into develop (74af2f1) will increase coverage by 0.15%. The diff coverage is n/a.

@@              Coverage Diff              @@
##             develop     #162      +/-   ##
=============================================
+ Coverage      86.75%   86.90%   +0.15%     
- Complexity       178      179       +1     
=============================================
  Files             21       21              
  Lines            581      580       -1     
  Branches          73       73              
=============================================
  Hits             504      504              
  Misses            48       48              
+ Partials          29       28       -1     

see 2 files with indirect coverage changes