Merge pull request 'Add memory limit for pictrs' (#186) from nutomic-patch-1 into main

Reviewed-on: https://yerbamate.ml/LemmyNet/lemmy/pulls/186

ansible/templates/docker-compose.yml

@@ -45,6 +45,7 @@ services:
     volumes:
       - ./volumes/pictrs:/mnt
     restart: always
+    mem_limit: 200m
 
   iframely:
     image: dogbin/iframely:latest