Update regex to also detect compose.yaml files

According to the new compose specification, compose.yaml is the
preferred file name.

.pre-commit-hooks.yaml

@@ -4,7 +4,7 @@
   description: Checks that docker-compose files are valid
   language: script
   entry: compose-check.sh
-  files: docker-compose.y[a]{0,1}ml$
+  files: (docker-)?compose.y[a]{0,1}ml$
 
 - id: hadolint
   name: Lint Dockerfiles