Use pagination to retrieve image tags from GCR

[pipecd-bot]

https://github.com/pipe-cd/pipe/blob/87a5339df3d21d6eae9ef4630c05e7bda004cbe6/pkg/app/piped/imageprovider/gcr/gcr.go#L105-L108

This was created by todo plugin since "TODO:" was found in 87a5339 when #1344 was merged. cc: @nakabonne.

[nakabonne]

GCR doesn't implement this pagination, mostly for historical reasons. It may be better to look into other solutions for those who care about it.

Ref: google/go-containerregistry#897

[nakabonne]

For those who have large tags and care about the response size, we just settled on urging them to use the FAKE image provider. So it may be better to remove this TODO comment and just add NOTE on this line and our documentation.

[nghialv]

Close this because we have decided to move to EventWatcher.
/close

[pipecd-bot]

@nghialv: Closed this issue in response to this comment.