feat: bumped to java 11, altered CI to target java 11

[jarebudev]

draft PR - have added it as wanted to verify my initial changes builds the CI first up before going further

This PR

Moves the sdk to java 11

Related Issues

Resolves #1371

Notes

draft at the moment

Follow-up Tasks

N/A

How to test

N/A

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.37%. Comparing base (7536679) to head (678e04e).
Report is 10 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1393      +/-   ##
============================================
+ Coverage     92.90%   93.37%   +0.47%     
- Complexity      470      471       +1     
============================================
  Files            43       43              
  Lines          1127     1147      +20     
  Branches         91       91              
============================================
+ Hits           1047     1071      +24     
+ Misses           53       48       -5     
- Partials         27       28       +1     

Flag	Coverage Δ
unittests	93.37% <100.00%> (+0.47%)	⬆️

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[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud