Scopes: Add groups property to ScopeDashboardBinding (#92077)

- Note: The `dashboardTitle` property and this property (`groups`) are likely to move from the `spec` container to the `status` container within the `scopeDashboardBinding` object in the future.

pkg/tests/apis/scopes/testdata/example-scope-dashboard-binding-abc.yaml

@@ -4,4 +4,6 @@ metadata:
   name: example_abc
 spec:
     scope: example
-    dashboard: abc
+    dashboard: abc
+    dashboardTitle: "Example Dashboard ABC"
+    groups: ["group1", "group2"]

pkg/tests/apis/scopes/testdata/example-scope-dashboard-binding-xyz.yaml

@@ -4,4 +4,6 @@ metadata:
   name: example_xyz
 spec:
     scope: example
-    dashboard: xyz
+    dashboard: xyz
+    dashboardTitle: "Example Dashboard XYZ"
+    groups: ["group2", "group3"]