Add secure diagnostics endpoint with authentication to etcadm controller

Author: rajeshvenkata

Makefile

@@ -123,7 +123,7 @@ verify-mocks: mocks ## Verify if mocks need to be updated
 	fi
 
 $(CONTROLLER_GEN): $(TOOLS_BIN_DIR) # Build controller-gen from tools folder.
-	GOBIN=$(ABS_TOOLS_BIN_DIR) go install sigs.k8s.io/controller-tools/cmd/controller-gen@v0.11.4
+	GOBIN=$(ABS_TOOLS_BIN_DIR) go install sigs.k8s.io/controller-tools/cmd/controller-gen@v0.16.5
 
 $(CONVERSION_GEN): $(TOOLS_BIN_DIR)
 	GOBIN=$(ABS_TOOLS_BIN_DIR) go install k8s.io/code-generator/cmd/[email protected]