Add support for ECS container IDs.

[umaannamalai]

This PR adds a new ECS vendor to parse container IDs in ECS/ Fargate environments.

[github-actions]

🦙 MegaLinter status: ❌ ERROR

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
❌ PYTHON	bandit	2		1	5.37s
✅ PYTHON	black	6	4	0	1.8s
❌ PYTHON	flake8	6		4	0.58s
✅ PYTHON	isort	6	6	0	0.21s
✅ PYTHON	pylint	6		0	5.26s

See detailed report in MegaLinter reports
Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff

MegaLinter is graciously provided by

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 89.79592% with 5 lines in your changes missing coverage. Please review.

Project coverage is 81.13%. Comparing base (c07d6f4) to head (0a475af).

Files with missing lines	Patch %	Lines
newrelic/common/utilization.py	90.00%	4 Missing ⚠️
newrelic/core/agent_protocol.py	88.88%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1209      +/-   ##
==========================================
- Coverage   81.13%   81.13%   -0.01%     
==========================================
  Files         197      197              
  Lines       21598    21643      +45     
  Branches     3775     3782       +7     
==========================================
+ Hits        17523    17559      +36     
- Misses       2937     2945       +8     
- Partials     1138     1139       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[TimPansino]

Validated in staging UI, service map links to the infra agent as expected.