Onboard addon-resizer repository into automatic image pushes

[raywainman]

Which component are you using?:

/area addon-resizer

Is your feature request designed to solve a problem? If so describe the problem this feature should solve.:

Currently the release process requires someone to manually build an image and push it to a container repository.

Describe the solution you'd like.:

We should onboard into the standard image pushing flow.

Once we get this up and running for addon-resizer, we can do the same for VPA and CA.

[raywainman]

/assign raywainman

[adolfogottlieb]

/assign raywainman