fix: avoid-top-level-members-in-tests

[lsaudon]

What is the purpose of this pull request? (put an "X" next to an item)

• Documentation update
• Bug fix
• New rule
• Changes an existing rule
• Add autofixing to a rule
• Add a CLI option
• Add something to the core
• Other, please explain:

Issues: #944

What changes did you make? (Give an overview)

I added all the folders ('*') so that only the test folder is taken into account.

Is there anything you'd like reviewers to focus on?

I tried to do a test to see if the file was being ignored, but I have the impression that the exclusion is done in another part of the code.

As it stands, this is the only rule that doesn't take excludes in parameters.
Is this normal?
We could add the excludes of the config or replace the existing excludes.

[codecov]

Codecov Report

Merging #945 (30929dd) into master (4152cd7) will not change coverage.
The diff coverage is 100.00%.

❗ Current head 30929dd differs from pull request most recent head fd7f74a. Consider uploading reports for the commit fd7f74a to get more accurate results

@@           Coverage Diff           @@
##           master     #945   +/-   ##
=======================================
  Coverage   87.75%   87.75%           
=======================================
  Files         312      312           
  Lines        6518     6518           
=======================================
  Hits         5720     5720           
  Misses        798      798           

Impacted Files	Coverage Δ
...n_tests/avoid_top_level_members_in_tests_rule.dart	100.00% <100.00%> (ø)

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[lsaudon]

I don't know why it was Publish test results that failed.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
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