chore: update controller-runtime source

[nakamasato]

1. Source: https://pkg.go.dev/sigs.k8s.io/[email protected]/pkg/source#Source
2. pkg/internal/controller/controller.go: https://github.com/kubernetes-sigs/controller-runtime/blob/v0.16.0/pkg/internal/controller/controller.go#L123-L137
3. Channel: https://github.com/kubernetes-sigs/controller-runtime/blob/v0.16.0/pkg/source/source.go#L70-L86
4. source: https://github.com/kubernetes-sigs/controller-runtime/blob/v0.16.0/pkg/source/source.go
5. Kind: https://github.com/kubernetes-sigs/controller-runtime/blob/v0.16.0/pkg/internal/source/kind.go#L20-L31

[codecov]

Codecov Report

Merging #293 (0a0323f) into main (14aeabf) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #293   +/-   ##
=======================================
  Coverage   31.97%   31.97%           
=======================================
  Files           3        3           
  Lines         172      172           
=======================================
  Hits           55       55           
  Misses        116      116           
  Partials        1        1