Update ghcr.io/element-hq/lk-jwt-service Docker tag to v0.3.0

roles/custom/matrix-livekit-jwt-service/defaults/main.yml

@@ -25,7 +25,7 @@ matrix_livekit_jwt_service_container_additional_networks_auto: []
 matrix_livekit_jwt_service_container_additional_networks_custom: []
 
 # renovate: datasource=docker depName=ghcr.io/element-hq/lk-jwt-service
-matrix_livekit_jwt_service_version: 0.2.3
+matrix_livekit_jwt_service_version: 0.3.0
 
 matrix_livekit_jwt_service_container_image_self_build: false
 matrix_livekit_jwt_service_container_repo: "https://github.com/element-hq/lk-jwt-service.git"