feat: act runner updates (#432)

saving artifacts are breaking in some actions as the runner will switch
between different git hosts. using haproxy will ensure the same backend
is always hit via stick-tables and cookies

- ensure runners use haproxy to reach git

we now package act_runner now, lets use the rpm

- change installation method to rpm instead of curl + untar
- add capability to versionlock act_runner
- fix paths to act_runner
- remove manually installed act_runner

Reviewed-on: #432

site/profiles/templates/gitea/act_runner.service.erb

@@ -4,7 +4,7 @@ Documentation=https://gitea.com/gitea/act_runner
 After=docker.service
 
 [Service]
-ExecStart=/usr/local/bin/act_runner daemon --config <%= @home %>/config.yaml
+ExecStart=/usr/bin/act_runner daemon --config <%= @home %>/config.yaml
 ExecReload=/bin/kill -s HUP $MAINPID
 WorkingDirectory=<%= @home %>
 TimeoutSec=0