Bump pwasm-utils from 0.18.0 to 0.18.1 (#293)

Bumps [pwasm-utils](https://github.com/paritytech/wasm-utils) from 0.18.0 to 0.18.1.
- [Release notes](https://github.com/paritytech/wasm-utils/releases)
- [Commits](https://github.com/paritytech/wasm-utils/commits

)

---
updated-dependencies:
- dependency-name: pwasm-utils
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

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