[jp_context] added additional code path to treat condition of Java8

[marscher]

We require now JNI_VERSION 9 := Java 9 to enforce the usage of at least Java9. If we fail to create the JVM with this requirement, we provide a user understandable error message.

I've tested it locally building Jpype with Java25 and then run it with Java8 to trigger the error message.
Also added a test case for it. This required to change the ci pipeline at little bit. We are now able to pass additional arguments to pytest via new parameter.

I've also added a simple function to obtain the JVM version for a given JVM library path. However due to restrictions of JNI, we need to ensure this method is only called from a distinct process, e.g. starting multiple JVM instances is not allowed.

[codecov]

Codecov Report

❌ Patch coverage is 81.96721% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.62%. Comparing base (f593880) to head (a57f7a2).

Files with missing lines	Patch %	Lines
native/common/jp_context.cpp	81.96%	7 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1318      +/-   ##
==========================================
- Coverage   86.66%   86.62%   -0.04%     
==========================================
  Files         112      112              
  Lines       10264    10303      +39     
  Branches     4026     4046      +20     
==========================================
+ Hits         8895     8925      +30     
- Misses        762      768       +6     
- Partials      607      610       +3     

Files with missing lines	Coverage Δ
native/common/include/jp_context.h	80.64% <ø> (ø)
native/common/jp_platform.cpp	73.33% <ø> (+6.66%)	⬆️
native/python/pyjp_module.cpp	81.64% <ø> (ø)
native/common/jp_context.cpp	75.75% <81.96%> (-0.81%)	⬇️

... and 1 file with indirect coverage changes

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[marscher]

None would be better.