Use docker-compose command line options from env variable

ahoy.yml

 ahoyapi: v2
 commands:
+  exec:
+    cmd: docker-compose exec ${LAKEDROPS_DEV_DC_OPTIONS} --user root php ./vendor/bin/behat --config tests/behat/behat.yml "$@"
   test:
-    cmd: docker-compose exec -T --user root php ./vendor/bin/behat --config tests/behat/behat.yml "$@"
+    cmd: ahoy behat "$@"
     usage: Run Behat tests on the project
   test2xml:
-    cmd: docker-compose exec -T --user root php ./vendor/bin/behat --config tests/behat/behat.yml --format junit --out tests/output "$@"
+    cmd: ahoy behat --format junit --out tests/output "$@"
     usage: Run Behat tests on the project and output in junit format
   update:
     cmd: composer lakedrops:behat "$@"