Add sysprop skip artifact config

[jtduffy]

Overview

Add a system property to configure the artifact skip function of the agent.
newrelic.config.startup_java_artifact_skips

This brings in line with the other bootstrap config options.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 70.40%. Comparing base (febc60e) to head (6e18d8b).

Files with missing lines	Patch %	Lines
...in/java/com/newrelic/bootstrap/BootstrapAgent.java	0.00%	6 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2509      +/-   ##
============================================
- Coverage     71.10%   70.40%   -0.70%     
+ Complexity    10673    10049     -624     
============================================
  Files           849      845       -4     
  Lines         42298    40779    -1519     
  Branches       6569     6187     -382     
============================================
- Hits          30075    28711    -1364     
+ Misses         9383     9275     -108     
+ Partials       2840     2793      -47     

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