Apply fix to prevent unwanted image rebuilds on BinderHubs backed by quay.io

[sgibson91]

• fixes Our binderhubs rebuild already built images when working against private container registries #4315
• fixes Attempt to make binderhub software allowed to read if an image is available in quay.io #4342
• related to (but doesn't fix yet) Fix unwanted rebuilds on BinderHubs that use quay.io as a registry #4343 (docs required, will do that tomorrow)

[github-actions]

Merging this PR will trigger the following deployment actions.

Support and Staging deployments

Cloud Provider	Cluster Name	Upgrade Support?	Reason for Support Redeploy	Upgrade Staging?	Reason for Staging Redeploy
aws	opensci	No		Yes	Following prod hubs require redeploy: small-binder, big-binder
gcp	hhmi	No		Yes	Following prod hubs require redeploy: binder

Production deployments

Cloud Provider	Cluster Name	Hub Name	Reason for Redeploy
aws	opensci	small-binder	Following helm chart values files were modified: small-binder.values.yaml, enc-small-binder.secret.values.yaml
aws	opensci	big-binder	Following helm chart values files were modified: big-binder.values.yaml, enc-big-binder.secret.values.yaml
gcp	hhmi	binder	Following helm chart values files were modified: enc-binder.secret.values.yaml, binder.values.yaml

[github-actions]

🎉🎉🎉🎉

Monitor the deployment of the hubs here 👉 https://github.com/2i2c-org/infrastructure/actions/runs/9781921409