* add new relic browser key detector
* add build tags to integration test
* always try both region urls before returning error
* extract region verification logic to separate function
* fix detector type change after merge
* chore: add feat flag gating and regen protos
* chore: add secret parts and adjust tests accordingly
* chore: regen protos and resolve comments
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Co-authored-by: Muneeb Ullah Khan <[email protected]>
