fix branch check

justfile

@@ -36,7 +36,7 @@ whats-going-to-prod:
 	@read -p"Press [Enter] to continue, ^C to abort..." _
 
 check-repo:
-	@test $(BRANCH) = main || (echo "You are not in the main branch" && exit 1)
+	@test $(git rev-parse --abbrev-ref HEAD) = main || (echo "You are not in the main branch" && exit 1)
 	@git pull --ff-only origin HEAD
 	@test $(shell git rev-parse origin/HEAD) = $(shell git rev-parse HEAD) || (echo "You have commits that have not been pushed" && exit 1)
 	@test -z "$(shell git status -s)" || (echo "You have uncommited changes in this branch" && exit 1)