Add reminder for NewestNetworkVersion to actors version checklist

documentation/misc/actors_version_checklist.md

@@ -1,6 +1,7 @@
 ### Actor version integration checklist
 
 - [ ] Import new actors
+- [ ] Define upgrade heights in `build/params_`
 - [ ] Generate adapters
   - [ ] Add the new version in `chain/actors/agen/main.go`
   - [ ] Update adapter code in `chain/actors/builtin` if needed
@@ -13,6 +14,6 @@
 - [ ] Update `chain/stmgr/forks.go`
   - [ ] Schedule
   - [ ] Migration
-- [ ] Define upgrade heights in `build/params_`
 - [ ] Update upgrade schedule in `api/test/test.go`
+- [ ] Update `NewestNetworkVersion` in `build/params_shared_vals.go`
 - [ ] Register in init in `chain/stmgr/utils.go`