Bump submodules/t3rn from 650bee9 to b6b7075 (#425)

Bumps [submodules/t3rn](https://github.com/t3rn/t3rn) from `650bee9` to `b6b7075`.
- [Release notes](https://github.com/t3rn/t3rn/releases)
- [Commits](t3rn/t3rn@650bee9...b6b7075)

---
updated-dependencies:
- dependency-name: submodules/t3rn
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>