ci: re-enable tparallel linter

[nickajacks1]

Description

In some cases, loop variables had to be reassigned to a local variable to avoid concurrent access. This will no longer be needed when fiber's minimum go version is bumped to 1.22 or later, where each loop iteration gets its own variable.

Type of Change

Please delete options that are not relevant.

• Code consistency (non-breaking change which improves code reliability and robustness)

Checklist

Before you submit your pull request, please make sure you meet these requirements:

• Conducted a self-review of the code and provided comments for complex or critical parts.
• Added or updated unit tests to validate the effectiveness of the changes or new features.
• Ensured that new and existing unit tests pass locally with the changes.