[backport 2.x]fixes the cacheConfigRTFCollector UT (#713)

[atharvasharma61]

Description

backport PR

Related Issues

Resolves #[Issue number to be closed when this PR is merged]

Check List

• [x] New functionality includes testing.
• [x] New functionality has been documented.
• [x] API changes companion pull request created.
• [x] Commits are signed per the DCO using --signoff.
• [x] Public documentation issue/PR created.

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