Removed the readinessProbe and deprecated health checks for the otel-agent sidecar to align its configuration with other containers

## Fix Fixed Removed the readinessProbe and deprecated health checks for the otel-agent sidecar to align its configuration with other containers. ## Feature Feature Changed `logLevel` configuration to support values as low as -10 to reduce log verbosity in Config Sync containers. ## Feature Feature Added support for token-based authentication when using OCI images from third-party registries.