chore(deps): update adminer:5.4.1-standalone docker digest to e21b24c

Author: renovate[bot]

src/development/stack.yml

@@ -35,7 +35,7 @@ services:
       - traefik.http.routers.adminer_secure.rule=Host(`adminer.${STACK_DOMAIN}`)
       - traefik.http.routers.adminer_secure.tls.options=mintls13@file #DARGSTACK-REMOVE
       - traefik.http.services.adminer.loadbalancer.server.port=8080
-    image: adminer:5.4.1-standalone@sha256:8f816804193e7e30f5725f4148a217dd5549579706b7d82204a26c18a32d95dc
+    image: adminer:5.4.1-standalone@sha256:e21b24c210671c7a8a0fdaf3a0a2e5779659ff3b5e91b9853b825ac0a8e6a350
     volumes:
     - ../production/configurations/adminer/adminer.css:/var/www/html/adminer.css:ro
   dargstack-example: