chore: updates to release candidate staging (#923)

* chore: improved staging from CI

Some more HTTP prefixes

* chore: correctly pass version to ATR

chore: updates to release candidate staging (#923)

* chore: improved staging from CI

Some more HTTP prefixes

* chore: correctly pass version to ATR

chore: correctly pass version to ATR

chore: stage release candidates from CI

chore: don't rely on Pekko Core `ccompat` (#890)

ccompat was intentionally never `@InternalStableApi`
to allow modules to evolve them more independently

release 1.3.0

 v2.0.0-M0

 v1.3.0-M0

release 1.2.0