Move ests telemetry related code behind a feature flag AB#3352490, Fixes AB#3352490

[siddhijain]

Emitting eSTS telemetry is an expensive operation that impacts the performance of calls. Therefore, we are placing it behind a feature flag to avoid executing telemetry-related operations. AB#3352490

[github-actions]

❌ Work item link check failed. Description does not contain AB#{ID}.

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[Copilot]

Pull Request Overview

This PR introduces a feature flag mechanism to control eSTS telemetry operations for performance optimization. The changes wrap existing telemetry code behind a feature flag check to avoid executing expensive telemetry operations when disabled.

• Added SKIP_ESTS_TELEMETRY feature flag to control telemetry execution
• Created TelemetryUtils.executeIfEstsTelemetryEnabled() method to conditionally execute telemetry code
• Wrapped all eSTS telemetry calls throughout the codebase with the new utility method

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
TelemetryUtils.java	Implements the core feature flag checking logic and execution wrapper
CommonFlight.java	Adds the new SKIP_ESTS_TELEMETRY feature flag definition
AttributeName.java	Adds telemetry attribute to track when eSTS telemetry is skipped
CacheEndEvent.java	Wraps EstsTelemetry.emit() call with feature flag check
OAuth2Strategy.java	Wraps EstsTelemetry header retrieval calls with feature flag check
NativeAuthRequestProvider.kt	Wraps EstsTelemetry header retrieval with feature flag check
CommandDispatcher.java	Wraps multiple EstsTelemetry method calls with feature flag check

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[github-actions]

✅ Work item link check complete. Description contains link AB#3352490 to an Azure Boards work item.

[mohitc1]

How about we make EstsTelemetry.getInstance() return NoOpEstsTelemetry when flight is enabled? Only change needed would be EstsTelemetry class, instead of updating every call.

[mohitc1]