With this PR we added the possibility to configure the Actions timeouts
values for killing tasks/jobs.
Particularly this enhancement is closely related to the `act_runner`
configuration reported below:
```
# The timeout for a job to be finished.
# Please note that the Gitea instance also has a timeout (3h by default) for the job.
# So the job could be stopped by the Gitea instance if it's timeout is shorter than this.
timeout: 3h
```
---
Setting the corresponding key in the INI configuration file, it is
possible to let jobs run for more than 3 hours.
Signed-off-by: Francesco Antognazza <francesco.antognazza@gmail.com>
