Init dashboardClientFunc and httpProxyClientFunc by the config arg

[bugorz]

Why are these changes needed?

• Based on @kevin85421's suggestion at https://github.com/ray-project/kuberay/pull/1980#discussion_r1550243563
• Instead of passing function(s) to NewRayServiceReconciler and NewRayJobReconciler, initialing them by the v1alpha1.Configuration configuration

Related issue number

• https://github.com/ray-project/kuberay/pull/1980

Checks

• [x] I've made sure the tests are passing.
• Testing Strategy
  • [] Unit tests
  • [x] Manual tests
  • [ ] This PR is not tested :(

[bugorz]

cc @rueian @kevin85421

[rueian]

LGTM

[rueian]

@kevin85421, This is our friend Sean's first contribution to KubeRay. Please take a look when you are available.

[hsiang-c]

Thanks @kevin85421 for the guidance.