build: Bump gdbstub_arch from 0.3.0 to 0.3.1 in /fuzz

Bumps [gdbstub_arch](https://github.com/daniel5151/gdbstub) from 0.3.0 to 0.3.1.
- [Release notes](https://github.com/daniel5151/gdbstub/releases)
- [Changelog](https://github.com/daniel5151/gdbstub/blob/master/CHANGELOG.md)
- [Commits](https://github.com/daniel5151/gdbstub/commits)

---
updated-dependencies:
- dependency-name: gdbstub_arch
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

fuzz/Cargo.lock

@@ -405,9 +405,9 @@ dependencies = [
 
 [[package]]
 name = "gdbstub_arch"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e3b1357bd3203fc09a6601327ae0ab38865d14231d0b65d3143f5762cc7977d"
+checksum = "328a9e9425db13770d0d11de6332a608854266e44c53d12776be7b4aa427e3de"
 dependencies = [
  "gdbstub",
  "num-traits",