fix(docker): use duration strings for api-gw cache config

Latest api-gw image expects Kotlin duration strings (e.g. "1m")
instead of bare numbers for CACHE_EXPIRE_AFTER_WRITE. Without this
fix, api-gw crashes on startup with "Invalid duration string format".

Author: tychtjan

docker-compose.yaml

@@ -515,9 +515,9 @@ services:
       GATEWAY_DB_POOL_MIN_IDLE: 0
       GATEWAY_DB_POOL_MAX_LIFE_TIME: 300000
       ORGANIZATION_CACHE_SIZE: 1000
-      CACHE_EXPIRE_AFTER_WRITE: 60
+      CACHE_EXPIRE_AFTER_WRITE: 1m
       USER_CACHE_SIZE: 1000
-      USER_CACHE_EXPIRE_AFTER_WRITE: 60
+      USER_CACHE_EXPIRE_AFTER_WRITE: 1m
       ORGANIZATION_CACHE_METRICS: "true"
       USER_CACHE_METRICS: "true"
       CALL_FORWARDER_CONNECT_TIMEOUT: 1m