Upgrade thiserror to 1.0.38 am: 6a1290e25d

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/thiserror/+/2361766

Change-Id: Ic09e6cd35d247d51e1efd82e7edfcdbaefb87f10
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>