Fix ignore on request path

[SylvainJuge]

What does this PR do?

Currently we ignore request using Servlet path, which does not include the Servlet context path.
As a result, trying to ignore URLs with /app-context/* with a web-application deployed to the /app-context context path is not ignored.

Checklist

• This is a bugfix
  • I have updated CHANGELOG.asciidoc
  • I have added tests that would fail without this fix

[apmmachine]

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Build stats

• Start Time: 2021-09-23T15:52:20.948+0000

• Duration: 57 min 54 sec

• Commit: b98ebcc

Test stats 🧪

Test	Results
Failed	0
Passed	2416
Skipped	19
Total	2435

💚 Flaky test report

Tests succeeded.

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[eyalkoren]

Much better!
Some wording proposals and one test enhancement proposal, otherwise looks good!

For some reason, integration tests in the latest build took considerably longer than expected and were aborted eventually.
I started another build, once it passes properly, you can see this PR as approved.

[eyalkoren]

❤️

[SylvainJuge]

After blaming the CI, I found what was causing the timeouts.
There was a one character typo in the URL generated to poll for application status, which in turn generated invalid URLs, which could not be polled 🤦 .