build(deps): Bump github.com/stretchr/testify from 1.8.0 to 1.8.1 in …

…/tx (cosmos#13636)

* build(deps): Bump github.com/stretchr/testify from 1.8.0 to 1.8.1 in /tx

Bumps [github.com/stretchr/testify](https://github.com/stretchr/testify) from 1.8.0 to 1.8.1.
- [Release notes](https://github.com/stretchr/testify/releases)
- [Commits](stretchr/testify@v1.8.0...v1.8.1)

---
updated-dependencies:
- dependency-name: github.com/stretchr/testify
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

* build(deps): Bump github.com/stretchr/testify from 1.8.0 to 1.8.1 in /tx for all modules

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>