* Secrets: changes to allow a 3rd party keeper / secret references
* fix test
* make gofmt
* lint
* fix tests
* assign aws secrets manager to @grafana/grafana-operator-experience-squad
* rename Keeper.Reference to Keeper.RetrieveReference
* rename ModelSecretsManager to ModelAWSSecretsManager
* validator: ensure that only one of keeper.Spec.Aws.AccessKey or keeper.Spec.Aws.AssumeRole are set
* move secrets manager dep / go mod tidy
* move secrets manager dep
* keeper validator: move 3rd party secret stores validation to their own functions
* add github.com/aws/aws-sdk-go-v2/service/secretsmanager pkg/extensions/enterprise_imports
* make update-workspace
* undo go.mod changes in /apps
* make update-workspace
* fix test
* add github.com/aws/aws-sdk-go-v2/service/secretsmanager to enterprise_imports
* make update-workspace
* gcworker: handle refs
* make update-workspace
* create toggle: FeatureStageExperimental
* allow features.IsEnabled for now
* format