When changing the helm chart the files under rendered need to be rebuilt with make render. It's strongly recommended to use pre-commit which will do this automatically for each commit (as well as run some linting).
It's recommended to use minikube with calico networking to run splunk-otel-collector locally.
If you run it on Windows or MacOS, use a linux VM driver, e.g. virtualbox. In that case use the following arguments to start minikube cluster:
minikube start --cni calico --vm-driver=virtualbox