Introduce new preview auto-scaling mode for ARC. (#2153)

Co-authored-by: Cory Miller <cory-miller@github.com>
Co-authored-by: Nikola Jokic <nikola-jokic@github.com>
Co-authored-by: Ava Stancu <AvaStancu@github.com>
Co-authored-by: Ferenc Hammerl <fhammerl@github.com>
Co-authored-by: Francesco Renzi <rentziass@github.com>
Co-authored-by: Bassem Dghaidi <Link-@github.com>

controllers/actions.github.com/clientutil.go

@@ -0,0 +1,22 @@
+package actionsgithubcom
+
+import (
+	"context"
+
+	kclient "sigs.k8s.io/controller-runtime/pkg/client"
+)
+
+type object[T kclient.Object] interface {
+	kclient.Object
+	DeepCopy() T
+}
+
+type patcher interface {
+	Patch(ctx context.Context, obj kclient.Object, patch kclient.Patch, opts ...kclient.PatchOption) error
+}
+
+func patch[T object[T]](ctx context.Context, client patcher, obj T, update func(obj T)) error {
+	original := obj.DeepCopy()
+	update(obj)
+	return client.Patch(ctx, obj, kclient.MergeFrom(original))
+}