Merge pull request #1018 from ChristianLempa/renovate/docker.io-pihole-pihole-2025.x

chore(deps): update docker.io/pihole/pihole docker tag to v2025.05.1

docker-compose/pihole/compose.yaml

@@ -2,7 +2,7 @@
 services:
   pihole:
     container_name: pihole
-    image: docker.io/pihole/pihole:2025.04.0
+    image: docker.io/pihole/pihole:2025.05.1
     ports:
       - 53:53/tcp
       - 53:53/udp