ES1-2965 : Change certificate selector type from MTLS to FW_MTLS

[adrojaankur]

No description provided.

[github-actions]

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I have read the CLA Document and I hereby sign the CLA

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1 out of 2 committers have signed the CLA.
✅ (adrojaankur)[https://github.com/adrojaankur]
❌ @muraliselvaraj2020
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