Use deploymentAnnotations over deployment_annotations

Co-authored-by: Joe Lanford <joe.lanford@gmail.com>

pkg/operators/v1alpha1/subscription_types.go

@@ -94,7 +94,7 @@ type SubscriptionConfig struct {
 	// DeploymentAnnotations is an unstructured key value map stored with a resource that may be
 	// set by external tools to store and retrieve arbitrary metadata.
 	// +optional
-	DeploymentAnnotations map[string]string `json:"deployment_annotations,omitempty" protobuf:"bytes,12,rep,name=deployment_annotations"`
+	DeploymentAnnotations map[string]string `json:"deploymentAnnotations,omitempty" protobuf:"bytes,12,rep,name=deploymentAnnotations"`
 }
 
 // SubscriptionConditionType indicates an explicit state condition about a Subscription in "abnormal-true"