Add non-operational healthchecks to media-repo and mjolnir

Both those containers don't have curl somehow

docker-compose.yml

@@ -180,6 +180,11 @@ services:
     depends_on:
       - postgres
       - redis
+    #healthcheck:
+    #  test: curl -fSs http://localhost:8000/healthz || exit 1
+    #  interval: 15s
+    #  timeout: 5s
+    #  retries: 5
 
   pantalaimon:
     image: matrixdotorg/pantalaimon:latest
@@ -194,6 +199,11 @@ services:
       - ./data/mjolnir:/data
     depends_on:
       - pantalaimon
+    #healthcheck:
+    #  test: curl -fSs http://localhost:8080/healthz || exit 1
+    #  interval: 15s
+    #  timeout: 5s
+    #  retries: 5
 
   prometheus:
     image: prom/prometheus:latest