Great @ManuelF , you can create that yourself easily, we are not creating an uptime index pattern auto anymore.
You can go stack management in kibana go to index patterns , this may differ based on diff kibana versions, i am using master
Press 'Create index pattern' , in next screen give it a name 'heartbeat-*'
then choose @timestamp as Time field
and you are done.
Go to Discover app, you should see the pattern and data.