chore: upgrade to 0.5.5+v2026.2.0

compose.yml

@@ -3,7 +3,7 @@ version: "3.8"
 
 services:
   app:
-    image: cryptpad/cryptpad:version-2026.5.0
+    image: cryptpad/cryptpad:version-2026.2.0
     command: ["npm", "start"]
     networks:
       - backend
@@ -36,7 +36,7 @@ services:
       labels:
         - "traefik.enable=false"
         - "coop-cloud.${STACK_NAME}.timeout=${TIMEOUT:-120}"
-        - "coop-cloud.${STACK_NAME}.version=0.6.0+v2026.5.0"
+        - "coop-cloud.${STACK_NAME}.version=0.5.5+v2026.2.0"
         - "backupbot.backup=true"
     healthcheck:
       test: ["CMD", "curl", "-f", "http://localhost:3000"]