Bump semver from 6.3.0 to 6.3.1 (#18)

Bumps [semver](https://github.com/npm/node-semver) from 6.3.0 to 6.3.1.
- [Release notes](https://github.com/npm/node-semver/releases)
- [Changelog](https://github.com/npm/node-semver/blob/v6.3.1/CHANGELOG.md)
- [Commits](npm/node-semver@v6.3.0...v6.3.1)

---
updated-dependencies:
- dependency-name: semver
  dependency-type: indirect
...

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

yarn.lock

@@ -1462,8 +1462,8 @@ safe-buffer@~5.2.0:
   resolved "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz"
 
 semver@^6.1.0, semver@^6.3.0:
-  version "6.3.0"
-  resolved "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz"
+  version "6.3.1"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.1.tgz#556d2ef8689146e46dcea4bfdd095f3434dffcb4"
 
 shebang-command@^2.0.0:
   version "2.0.0"