[Static Validation] Updated tests to better handle resources that don't have standard outputs + updated 'skip' behavior + fixed Pester test result reference + fixed readme param name

[AlexanderSehr]

Description

• Fixed incorrect header test (fails all child modules)
• Updated the tests to check if a primary resource exists in the module and only then test for standard outputs. A primary resource is defined by a resource that matches the module path. For example: The SecurityCenter module is in a path Microsoft.Security\azureSecurityCenter even though this resource type does not exist in the module. Instead the module is a collection of other resource type deployments and as a result it does not make sense to test for e.g. a Microsoft.Security\azureSecurityCenter resource ID
• Fixed the reference of Pester test results. Currently shows 0 tests in the pipeline. With the change it shows:
  
• Also, I updated how tests are skipped using the Pester specific 'Skip' function. This allows us to be more specific in our test outputs and tests won't just show 'green' even though they didn't actually run if skipped. The result looks like this:
  

Pipeline references

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Pipeline

Type of Change

Please delete options that are not relevant.

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Update to documentation

[github-actions]

Unit Test Results

    2 files  +    1      1 suites  +1   25s ⏱️ +25s
120 tests +120  112 ✔️ +112  8 💤 +8  0 ❌ ±0 
123 runs  +123  115 ✔️ +115  8 💤 +8  0 ❌ ±0 

Results for commit 8d13d84. ± Comparison against base commit 01caf8f.

♻️ This comment has been updated with latest results.

[eriqua]

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