Add support for tolerations?

[markfink-splunk]

In daemonset mode, it installs to worker nodes only, not master, which is normal and we can usually workaround with a toleration. But I can't figure out how to apply a toleration to this operator and support for it may need to be added. The use-case is for the kubelet metrics receiver that is available with otel-collector-contrib. I'd like to get kubelet metrics on the master node. I'm creating a separate deployment just for the master now. It would be convenient to roll support for this into the operator.

[jpkrohling]

Sounds like a valid use case. Would you like to send a PR adding support to the operator?