Bump service-runner version
Bump service-runner version

service-runner v0.3.1 brings logging improvements and bug fixes as well
as the possiblity to run, test and build the deploy repository with
alternative Node.JS versions.

Change-Id: I91446b71e31221754ff8e379d2d56f5382995340

wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps