Follow-up for product suffixes removal RUN AS-IF-FOSS

What does this MR do?

Issue: #218764 (closed)

Follow-up for: !39717 (merged), !39715 (e67e7ee8)

After merging: !39715 (merged)

The anchor's migration #218764 (closed) is done. This is a follow up merge request to revert workarounds for the documentation linter.

Changes

• Revert an approximate match in the documentation linter
• Revert an allow_failure: true behavior
• Update a regular expression to remove false-positives in the linter

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• [-] Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• [-] Tested in all supported browsers
• [-] Informed Infrastructure department of a default or new setting change, if applicable per definition of done