submodule: bump third_party/openthread/repo from `3b30c84` to `a05954b` (#2088)

Bumps [third_party/openthread/repo](https://github.com/openthread/openthread) from `3b30c84` to `a05954b`.
- [Commits](https://github.com/openthread/openthread/compare/3b30c842a29d2251c58fa7bf3bd7336d396fa19a...a05954b01e28cfe18180a0ecf18b08a95295b9ae)

---
updated-dependencies:
- dependency-name: third_party/openthread/repo
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/third_party/openthread/repo b/third_party/openthread/repo
index 3b30c84..a05954b 160000
--- a/third_party/openthread/repo
+++ b/third_party/openthread/repo
@@ -1 +1 @@
-Subproject commit 3b30c842a29d2251c58fa7bf3bd7336d396fa19a
+Subproject commit a05954b01e28cfe18180a0ecf18b08a95295b9ae