fix: CI - Fixed and expanded upon required/optional validation

[AlexanderSehr]

Description

Fixed static test validating parameter descriptions
It checked for a line that looke like ('Required. even though the value of the $description variable at the time only has the description's value, that is Required.
Added test that tests the reverse, that is, that a parameter's description starts with Required. in its title if it is required

Depends on #3615

Pipeline Reference

Pipeline

Type of Change

• Update to CI Environment or utilities (Non-module affecting changes)
• Azure Verified Module updates:
  • Bugfix containing backwards-compatible bug fixes, and I have NOT bumped the MAJOR or MINOR version in version.json:
    • Someone has opened a bug report issue, and I have included "Closes #{bug_report_issue_number}" in the PR description.
    • The bug was found by the module author, and no one has opened an issue to report it yet.
  • Feature update backwards compatible feature updates, and I have bumped the MINOR version in version.json.
  • Breaking changes and I have bumped the MAJOR version in version.json.
  • Update to documentation

[eriqua]

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