Bump contracts/lib/teleporter from 6ba4656 to 4a43331

Bumps [contracts/lib/teleporter](https://github.com/ava-labs/teleporter) from `6ba4656` to `4a43331`.
- [Release notes](https://github.com/ava-labs/teleporter/releases)
- [Commits](ava-labs/icm-contracts@6ba4656...4a43331)

---
updated-dependencies:
- dependency-name: contracts/lib/teleporter
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>