feat: Support runtime metrics

[adebayor123]

Relevant PR:

• feat: Support runtime-metrics aws-observability/helm-charts#97
• feat: Support runtime metrics amazon-cloudwatch-agent#1306

Description of changes:
As part of supporting runtime metrics for Application Signals, we need a mechanism to allow customers to disable runtime-metrics for Addons. This PR creates a new field under manager, autoInstrumentationApplicationSignals that will be used in the cloudwatch-agent-operator to disable runtime-metrics.

E2E Testing

When runtime is set to false:

--auto-instrumentation-config={"dotnet":{"limits":{"cpu":"500m","memory":"128Mi"},"requests":{"cpu":"50m","memory":"128Mi"}},"java":{"limits":{"cpu":"500m","memory":"64Mi"},"requests":{"cpu":"50m","memory":"64Mi"},"runtime":{"enabled":false}},"nodejs":{"limits":{"cpu":"500m","memory":"128Mi"},"requests":{"cpu":"50m","memory":"128Mi"}},"python":{"limits":{"cpu":"500m","memory":"32Mi"},"requests":{"cpu":"50m","memory":"32Mi"},"runtime":{"enabled":false}}}

The namespace level configuration is set as:

OTEL_AWS_APPLICATION_SIGNALS_RUNTIME_ENABLED=false

When runtime is set to true:

--auto-instrumentation-config={"dotnet":{"limits":{"cpu":"500m","memory":"128Mi"},"requests":{"cpu":"50m","memory":"128Mi"}},"java":{"limits":{"cpu":"500m","memory":"64Mi"},"requests":{"cpu":"50m","memory":"64Mi"},"runtime":{"enabled":true}},"nodejs":{"limits":{"cpu":"500m","memory":"128Mi"},"requests":{"cpu":"50m","memory":"128Mi"}},"python":{"limits":{"cpu":"500m","memory":"32Mi"},"requests":{"cpu":"50m","memory":"32Mi"},"runtime":{"enabled":true}}}

The namespace level configuration is set as:

OTEL_AWS_APPLICATION_SIGNALS_RUNTIME_ENABLED=true

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