Ensure openruntimes-executor restarts after a server reboot

Every other service restarts automatically after a server reboot so
the openruntimes-executor should too. Otherwise, function executions
will fail as the executor is unavailable.

app/views/install/compose.phtml

@@ -666,6 +666,7 @@ services:
     container_name: openruntimes-executor
     hostname: appwrite-executor
     <<: *x-logging
+    restart: unless-stopped
     stop_signal: SIGINT
     image: openruntimes/executor:0.4.3
     networks:

docker-compose.yml

@@ -722,6 +722,7 @@ services:
     <<: *x-logging
     stop_signal: SIGINT
     image: openruntimes/executor:0.4.3
+    restart: unless-stopped
     networks:
       - appwrite
       - runtimes