[ASCII-1218] Only initialize needed configs for serverless (DataDog#2…

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* feat: only initialize needed configs for serverless

* feat: agent configs

* feat: fips configs

* feat: dogstatsd configs

* forwarder configs

* feat: aggregator configs

* feat: serializer configs

* feat: serverless configs

* feat: otlp + apm + ha configs

* feat: telemetry configs

* feat: autoconfig configs

* feat: remote config configs

* feat: logs agent configs

* feat: container path configs

* feat: containerd configs

* feat: cri configs

* feat: kubernetes config

* feat: cloudfoundry configs

* feat: debugging configs

* feat: vector configs

* feat: various missing agent configs

* feat: add missing dogstatsd configs

* docs: improve description

* test: serverless init, enforce number of config groups for serverless

* feat: podman configs