Prevent duplicate bus shutdowns on container destroy; bump version

src/support/bus/Bus.ts

@@ -234,6 +234,8 @@ export class Bus<TEvent extends Event = Event> extends Unit implements EventBus<
     }
 
     onContainerDestroy(): Awaitable<void> {
-        this.down()
+        if ( this.isUp ) {
+            this.down()
+        }
     }
 }

src/support/bus/LocalBus.ts

@@ -139,6 +139,8 @@ export class LocalBus<TEvent extends Event = Event> extends CanonicalItemClass i
     }
 
     onContainerRelease(): Awaitable<void> {
-        this.down()
+        if ( this.isUp ) {
+            this.down()
+        }
     }
 }