Fix flake on rabbitmq_mqtt auth_SUITE (backport #13180) (backport #13246)

[mergify]

Proposed Changes

Separate invalid client test from the valid one onto separate group and this way they use different SSL certs

Types of Changes

What types of changes does your code introduce to this project?
Put an x in the boxes that apply

• Bug fix (non-breaking change which fixes issue #NNNN)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause an observable behavior change in existing systems)
• Documentation improvements (corrections, new content, etc)
• Cosmetic change (whitespace, formatting, etc)
• Build system and/or CI

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This is an automatic backport of pull request #13180 done by [Mergify](https://mergify.com).

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This is an automatic backport of pull request #13246 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of e84a516 has failed:

On branch mergify/bp/v4.0.x/pr-13246
Your branch is up to date with 'origin/v4.0.x'.

You are currently cherry-picking commit e84a51603.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   selenium/test/pageobjects/BasePage.js

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   deps/rabbitmq_mqtt/test/auth_SUITE.erl
	both modified:   selenium/package.json

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[michaelklishin]

@MarcialRosales please resolve this conflict.

[michaelklishin]

I had to resolve these elsewhere, so I'll do it.