Allow configuring the port for the http probe

[iocanel]

Description

Currently, there is no configuration option for setting the port of the httpAction for probes. The port number is infered from the build system, by looking up for a port named http.

There are cases where we need to use another port (e.g. the management port). We should provide the option in PortConfig to use a differnet port name or value.

Implementation ideas

No response

[cescoffier]

The config could be either an int or a string (port binding name).

[quarkus-bot]

/cc @Sgitario (kubernetes), @geoand (knative,kubernetes,minikube,openshift)

[iocanel]

We should probide the option in PortConfig to use a differnet port name or value

probide ?

This is a typo, no pun intended!