fix(core-flows): lock draft order workflows (#13668)

I added a lock in all workflows of the draft order. I don't think there are drawbacks and it will make sure we don't run into concurrency issues in with draft orders. I don't see why we would not add this in the order workflows, let me know and I can add it too.

I also didn't see any workflow that is long enough to justify adding a timeout of more than 2 seconds, but let me know if you think otherwise, we can discuss adjustments :)

CLOSES-1228

.changeset/old-zebras-destroy.md

@@ -0,0 +1,5 @@
+---
+"@medusajs/core-flows": patch
+---
+
+fix(core-flows): lock draft order workflows