chore(deps): update dependency newrelic to v8.9.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
newrelic (source)	==8.8.1 -> ==8.9.0

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Release Notes

newrelic/newrelic-python-agent (newrelic)

v8.9.0

Compare Source

Notes

This release of the Python agent adds support for RedisCluster.

Install the agent using easy_install/pip/distribute via the Python Package Index or download it directly from the New Relic download site.

Enhancements

• Add support for RedisCluster
  Adds instrumentation support for RedisCluster.

Bug fixes

• Resilient Environment Settings
  Fixed a crash when using generalimport with the agent. Thanks for the contribution, aaeabdo!

• Remove deprecated drop_transaction calls from agent
  The drop_transaction function had been removed from the agent but references to it still existed, so this version of the agent removes any remaining calls.

• Fix logic in serverless distributed tracing to work by default

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