Fix autoscaler URL template and install 0.28.0 by default

Author: tobiashuste

roles/gitlab_runner/defaults/main.yml

@@ -46,8 +46,8 @@ gitlab_runner_session_server_listen_address: "0.0.0.0:8093"
 gitlab_runner_session_server_advertise_address: "{{ gitlab_runner_session_server_listen_address }}"
 gitlab_runner_session_server_timeout: 1800
 
-gitlab_runner_autoscaler_plugin_version: "0.21.1"
-gitlab_runner_autoscaler_plugin_url: "https://github.com/sardinasystems/fleeting-plugin-openstack/releases/download/{{ gitlab_runner_autoscaler_plugin_version }}/fleeting-plugin-openstack_{{ gitlab_runner_autoscaler_plugin_version }}_linux_amd64.tar.gz"
-gitlab_runner_autoscaler_plugin_checksumfile: "https://github.com/sardinasystems/fleeting-plugin-openstack/releases/download/{{ gitlab_runner_autoscaler_plugin_version }}/fleeting-plugin-openstack_{{ gitlab_runner_autoscaler_plugin_version }}_sha512-checksums.txt"
+gitlab_runner_autoscaler_plugin_version: "v0.28.0"
+gitlab_runner_autoscaler_plugin_url: "https://github.com/sardinasystems/fleeting-plugin-openstack/releases/download/{{ gitlab_runner_autoscaler_plugin_version }}/fleeting-plugin-openstack_{{ gitlab_runner_autoscaler_plugin_version | replace('v', '') }}_linux_amd64.tar.gz"
+gitlab_runner_autoscaler_plugin_checksumfile: "https://github.com/sardinasystems/fleeting-plugin-openstack/releases/download/{{ gitlab_runner_autoscaler_plugin_version }}/fleeting-plugin-openstack_{{ gitlab_runner_autoscaler_plugin_version | replace('v', '') }}_sha512-checksums.txt"
 
 gitlab_runner_butane_config_template: "butane-config.bu.j2"