Update docker-compose.yml

use specific plausible version before v2.0.0

examples/plausible/docker-compose.yml

@@ -34,7 +34,7 @@ services:
 
   plausible:
     container_name: plausible
-    image: plausible/analytics:latest
+    image: plausible/analytics:v1.5
     restart: always
     command: sh -c "sleep 10 && /entrypoint.sh db createdb && /entrypoint.sh db migrate && /entrypoint.sh db init-admin && /entrypoint.sh run"
     depends_on: