tidy: skip submodules if not present for non-CI environments

Signed-off-by: onur-ozkan <[email protected]>
diff --git a/Cargo.lock b/Cargo.lock
index 58d95f9..a9fdf89 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5697,6 +5697,7 @@
 name = "tidy"
 version = "0.1.0"
 dependencies = [
+ "build_helper",
  "cargo_metadata 0.15.4",
  "ignore",
  "miropt-test-tools",