Package capture harvest

[lrafeei]

This PR aims to alleviate some of the time consumed by package data collection in the connect cycle. Instead of collecting all modules used in the application at startup, the agent uses the fast harvest cycle to incrementally collect this data and sends it though the update_loaded_modules endpoint instead of the connect endpoint (through the "environment" key).

Note: despite the term "Jars" not being used by Python to refer to packages/modules, this is the exact string the endpoint needs in order to process the data.

[github-actions[bot]]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ PYTHON	bandit	4		0	5.34s
✅ PYTHON	black	6	0	0	1.44s
✅ PYTHON	flake8	6		0	0.76s
✅ PYTHON	isort	6	0	0	0.34s
✅ PYTHON	pylint	6		0	6.02s

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 72.54902% with 14 lines in your changes missing coverage. Please review.

Project coverage is 81.17%. Comparing base (dacf155) to head (fd3b91c).

Files with missing lines	Patch %	Lines
newrelic/core/application.py	64.00%	8 Missing and 1 partial :warning:
newrelic/core/environment.py	77.77%	3 Missing and 1 partial :warning:
newrelic/common/agent_http.py	75.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1228 +/- ## ========================================== - Coverage 81.34% 81.17% -0.18% ========================================== Files 200 200 Lines 21891 21913 +22 Branches 3469 3472 +3 ========================================== - Hits 17808 17787 -21 - Misses 2941 2977 +36 - Partials 1142 1149 +7 ```

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