chore(deps-dev): bump libsodium-wrappers from 0.7.14 to 0.7.15

Bumps [libsodium-wrappers](https://github.com/jedisct1/libsodium.js) from 0.7.14 to 0.7.15.
- [Commits](jedisct1/libsodium.js@0.7.14...0.7.15)

---
updated-dependencies:
- dependency-name: libsodium-wrappers
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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