Add test for capture_headers in context_builder

[mheiligers-godaddy]

What does this pull request do?

PR#1405 introduced a bug where if capture_headers is false, the ContextBuilder will raise "undefined method `has_key?' for nil:NilClass"

Checklist

• I have signed the Contributor License Agreement.
• My code follows the style guidelines of this project (See .rubocop.yml)
• I have rebased my changes on top of the latest main branch

• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

- [ ] I have made corresponding changes to the documentation

• I have updated CHANGELOG.asciidoc
  - [ ] I have updated supported-technologies.asciidoc
  - [ ] Added an API method or config option? Document in which version this will be introduced

Related issues

[cla-checker-service]

💚 CLA has been signed

[mheiligers-godaddy]

❌ Author of the following commits did not sign a Contributor Agreement: 4fb1308

Please, read and sign the above mentioned agreement if you want to contribute to this project

Yes, yes I have.

[estolfo]

Hi @mheiligers-godaddy thanks a lot for opening this PR! Are you sure you're signing the CLA with the same email address you use for this GitHub account?

[mheiligers-godaddy]

Hi @mheiligers-godaddy thanks a lot for opening this PR! Are you sure you're signing the CLA with the same email address you use for this GitHub account?

Yes, but I got an email from @gtback yesterday afternoon saying the system had been updated (I didn't realize there was an additional step) so the check should pass now.

Separately, I see there's a failing spec on JRuby 9.2-13 with Rails 5.2, but it seems unrelated to my change, though I admit I haven't looked into it further than the stack trace in the action output.

[reakaleek]

run docs-build

[sjohn-godaddy]

Could we have a release with this bug fix? that would be very welcome, as our other alternative is to downgrade to 4.3 due to dependency to other gems. @estolfo

[estolfo]

Hi @sjohn-godaddy, sure, we can do a release soon. Thanks for your patience!

[picandocodigo]

@sjohn-godaddy @mheiligers-godaddy v4.7.3 was released with this fix.