Rename "Attempts" to "Runs" in the backend

[taylordowns2000]

After #1571 is delivered, the words run and attempt are both used to describe Thing X in this hierarchy:

Workflow
 ↳ Work Order
  ↳ Thing X (`attempts` table, "Run" in the UI, `Attempt` or `Run` in most parts of the backend)
   ↳ Step   

Rename all places where attempt is used to call it a run.

[taylordowns2000]

all good here, but blocked until we release @openfn/ws-worker@0.8.0 - want to talk with joe about that tomorrow to sort out some options naming stuff, but I expect to have both ready by tomorrow EOD

[stuartc]

@taylordowns2000 why do we need to wait? I thought the worker channel was backwards compatible?

[taylordowns2000]

the run stuff was backwards compatible, but this new stuff has some annoying contractual bits... built compatibility for several, but the one that got me was that the old worker expects an object with an attempts key in it and I don't want to send both attempts and runs during the transition

[stuartc]

Could we add versioning, that way this (and any other changes) won't expose us to version incompatibilities that require all pods to be shut down before deploy..

i.e. opt in changes, like only if the version is provided (and/or is greater than x) then we treat it differently...