chore(deps-dev): bump semver from 6.3.0 to 6.3.1 in /packages/vanilla

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>

packages/vanilla/yarn.lock

@@ -3868,21 +3868,11 @@ selfsigned@^2.1.1:
   dependencies:
     node-forge "^1"
 
-semver@^6.0.0, semver@^6.3.0:
-  version "6.3.0"
-  resolved "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz"
-
-semver@^6.3.1:
+semver@^6.0.0, semver@^6.3.0, semver@^6.3.1:
   version "6.3.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.1.tgz#556d2ef8689146e46dcea4bfdd095f3434dffcb4"
 
-semver@^7.3.4:
-  version "7.3.7"
-  resolved "https://registry.npmjs.org/semver/-/semver-7.3.7.tgz"
-  dependencies:
-    lru-cache "^6.0.0"
-
-semver@^7.5.3, semver@^7.5.4:
+semver@^7.3.4, semver@^7.5.3, semver@^7.5.4:
   version "7.5.4"
   resolved "https://registry.yarnpkg.com/semver/-/semver-7.5.4.tgz#483986ec4ed38e1c6c48c34894a9182dbff68a6e"
   dependencies: