test(integration): update osstreams to use releaseinfo.GetRHELStream

Update integration test imports to reference GetRHELStream from
support/releaseinfo instead of controllers/nodepool, fixing the
dependency direction.

Signed-off-by: Juan Manuel Parrilla Madrid <jparrill@redhat.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jparrill

test/integration/osstreams/osstreams_test.go

@@ -13,6 +13,7 @@ import (
 	"github.com/openshift/hypershift/support/releaseinfo"
 	"github.com/openshift/hypershift/support/releaseinfo/fixtures"
 
+
 	"github.com/coreos/stream-metadata-go/stream"
 
 	imagev1 "github.com/openshift/api/image/v1"
@@ -123,7 +124,7 @@ func TestOSStreamsEndToEnd(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			g := NewWithT(t)
 
-			streamName, err := nodepool.GetRHELStream(tt.explicitStream, tt.releaseVersion, tt.usesRunc)
+			streamName, err := releaseinfo.GetRHELStream(tt.explicitStream, tt.releaseVersion, tt.usesRunc)
 			if tt.expectError {
 				g.Expect(err).To(HaveOccurred())
 				return