task-runner: make replicas configurable
Make replicas configurable for gitlab/task-runner, in preparation
for removing the .enabled key.
- Add notice to NOTES for when
replicas: 0 - Add checkConfig entry for when
replicas > 1&persistence.enabled: true - Add new
replicasproperty to values, template into Deployment
Closes #1254 (closed)
Edited by Jason Plum