Automate Reconfiguration Performance Test

[mpstefan]

As a maintainer of NGF
I want to automate the reconfiguration performance test
So that I do not need to run it manually in the future.

Acceptance

• The reconfiguration performance test is automated to the point of being able to run the entire test from running a script.
• The relevant results of the test are output as a result of the test.

Dev Notes

• This test involves redeploying NGF for each test case. Instead of doing that, we could likely just scale the replicas to 0 before each test case, and speed up execution instead of waiting for each redeployment.
• Use local Prometheus instead of Google monitoring for metrics collection.

[github-actions]

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