chore: add pruning envs

Author: l4rm4nd

examples/n8n/docker-compose.yml

@@ -12,6 +12,9 @@ services:
       - POSTGRES_DB
       - POSTGRES_NON_ROOT_USER
       - POSTGRES_NON_ROOT_PASSWORD
+      - EXECUTIONS_DATA_PRUNE=true
+      - EXECUTIONS_DATA_MAX_AGE=365
+	  	- EXECUTIONS_DATA_PRUNE_MAX_COUNT=50000
     volumes:
       - ${DOCKER_VOLUME_STORAGE:-/mnt/docker-volumes}/n8n/database:/var/lib/postgresql/data
       - ${DOCKER_VOLUME_STORAGE:-/mnt/docker-volumes}/n8n/init-database.sh:/docker-entrypoint-initdb.d/init-data.sh:ro