Add codeowners for Video Indexer (#30534)

Adding Omer, Tal, Raz, Einav and Daria to VI Code owners

Author: dazilb

.github/CODEOWNERS

@@ -260,6 +260,9 @@
 # PRLabel: %Web Apps
 /specification/web/ @naveedaz @Azure/azure-app-service-control-plane
 
+# PRLabel: %Video Indexer
+/specification/vi/ @dazilb @tshoham @omerhaimov @bermanraz @Einav94
+
 # PRLabel: %AzureML - Compute Instance
 /specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/**/machineLearningServices.json @Azure/aml-compute-instance