Hono: Improve tracing sampler configuration

[calohmn]

When deploying the Hono chart with a tracing backend, currently the Hono components send all traces to the tracing collector by default.
In order to limit the number of traces sent by the components, Hono has different sampler configuration options:
https://www.eclipse.org/hono/docs/admin-guide/monitoring-tracing-config/#tracing

Setting these options for the Hono Helm chart deployment currently requires using the envConfigMap property along with a confg map containing corresponding environment variables. (Another option would be using an extra config file referenced via quarkusConfigLocations.)

It would be helpful to provide a more straightforward chart configuration option for configuring the sampler here.