Simcore: remove rollback update policy (#1174)

simcore service should all be using the same version. Version mismatches
are not expected (developers do not take backwarn compatibility between
simcore service versions into account). Also simcore services using
database expect a migraton version to match (directly related to
version).

Related issue/s
* closes #1167

Author: YuryHrytsuk

services/simcore/docker-compose.yml.j2

@@ -346,7 +346,7 @@ services:
       update_config:
         parallelism: 2
         order: start-first
-        failure_action: rollback
+        failure_action: continue
         delay: 10s
       restart_policy:
         condition: any
@@ -415,7 +415,7 @@ services:
       update_config:
         parallelism: 1
         order: start-first
-        failure_action: rollback
+        failure_action: continue
         delay: 10s
       placement:
         constraints:
@@ -436,7 +436,7 @@ services:
       update_config:
         parallelism: 1
         order: start-first
-        failure_action: rollback
+        failure_action: continue
         delay: 10s
       placement:
         constraints:
@@ -1066,7 +1066,7 @@ services:
       update_config:
         parallelism: 1
         order: start-first
-        failure_action: rollback
+        failure_action: continue
         delay: 10s
       resources:
         limits: