Disable enhanced metric by setting an environment variable DD_SUBMIT_ENHANCED_METRICS to false

[perzycharles]

If the forwarder has another function log group as a trigger, enhanced lambda metric of another function would be generated, which is confusing because this will cause the other function to appear in the Serverless page.

What does this PR do?

This PR would allow customer to disable enhanced metric by simply setting an environment variable DD_SUBMIT_ENHANCED_METRICS to false

Motivation

Jira issues CLOUDS-4535/CLOUDS-4529

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Additional Notes

Types of changes

• Bug fix
• New feature
• Breaking change
• Misc (docs, refactoring, dependency upgrade, etc.)

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[kimi-p]

Wait. I think this variable is a already being used? Is the plan to overload the old env var with this enablement?

datadog-serverless-functions/aws/logs_monitoring/telemetry.py

Line 9 in 978cfdf

DD_SUBMIT_ENHANCED_METRICS = True

[kimi-p]

DD_SUBMIT_ENHANCED_METRICS is already used