chore(deps): update docker.io/owncloud/ubuntu docker tag to v24

Author: renovate[bot]

.drone.star

@@ -1,6 +1,6 @@
 DOCKER_PUSHRM_IMAGE = "docker.io/chko/docker-pushrm:1"
 DRONE_DOCKER_BUILDX_IMAGE = "docker.io/owncloudci/drone-docker-buildx:4"
-UBUNTU_IMAGE = "docker.io/owncloud/ubuntu:22.04"
+UBUNTU_IMAGE = "docker.io/owncloud/ubuntu:24.04"
 
 def main(ctx):
     versions = [