Bump Drone version to 1.2.0.Beta1 -- it fixes auto-pull for PhantomJS.
Bump Drone version to 1.2.0.Beta1 -- it fixes auto-pull for PhantomJS.

GoogleCloudPlatform/appengine-tck,alesj/appengine-tck,GoogleCloudPlatform/appengine-tck,GoogleCloudPlatform/appengine-tck,alesj/appengine-tck,GoogleCloudPlatform/appengine-tck