Update matrixdotorg/matrix-user-verification-service Docker tag to v3

roles/custom/matrix-user-verification-service/defaults/main.yml

@@ -7,7 +7,7 @@ matrix_user_verification_service_enabled: true
 
 # Fix version tag
 # renovate: datasource=docker depName=matrixdotorg/matrix-user-verification-service
-matrix_user_verification_service_version: "v2.0.0"
+matrix_user_verification_service_version: "v3.0.0"
 
 # Paths
 matrix_user_verification_service_base_path: "{{ matrix_base_data_path }}/user-verification-service"