Merge pull request #1110 from ChristianLempa/renovate/lscr.io-linuxserver-heimdall-2.7.x

chore(deps): update lscr.io/linuxserver/heimdall docker tag to v2.7.4

docker-compose/heimdall/compose.yaml

@@ -1,7 +1,7 @@
 ---
 services:
   heimdall:
-    image: lscr.io/linuxserver/heimdall:2.7.0
+    image: lscr.io/linuxserver/heimdall:2.7.4
     container_name: heimdall
     environment:
       - PUID=1000