Update valkey stability tag to 0.4.0

Author: wodbot

.env

@@ -63,8 +63,8 @@ NGINX_TAG=1.27-5.39.13
 
 ### --- VALKEY ---
 
-VALKEY_TAG=8-0.3.2
-#VALKEY_TAG=7-0.3.2
+VALKEY_TAG=8-0.4.0
+#VALKEY_TAG=7-0.4.0
 
 ### --- NODE ---
 

tests/.env

@@ -8,7 +8,7 @@ DB_HOST=mariadb
 
 MARIADB_TAG=11.4-3.30.2
 NGINX_TAG=1.27-5.39.13
-VALKEY_TAG=8-0.3.2
+VALKEY_TAG=8-0.4.0
 VARNISH_TAG=6.0-4.18.4
 
 WORDPRESS_STABILITY_TAG=4.93.4