Ignore few other agents

[SylvainJuge]

What does this PR do?

AppDynamics agent is now using another package com.appdynamics. and thus our heuristic to ignore it should be updated, and we need to exclude at classloader level rather than class name package only.

While we are at it, we might also enhance heuristic for other known agents.

Checklist

• This is a bugfix
  • manually testing with a problematic other vendor agent
  • I have updated CHANGELOG.asciidoc
  • I have added tests that would fail without this fix

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Build stats

• Start Time: 2022-09-01T15:30:10.932+0000

• Duration: 58 min 52 sec

Test stats 🧪

Test	Results
Failed	0
Passed	3132
Skipped	36
Total	3168

💚 Flaky test report

Tests succeeded.

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