build(deps): bump semver in /packages/@uppy/companion

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: direct:production
...

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

packages/@uppy/companion/package.json

@@ -61,7 +61,7 @@
     "purest": "3.1.0",
     "redis": "3.1.1",
     "request": "2.88.2",
-    "semver": "6.3.0",
+    "semver": "6.3.1",
     "serialize-error": "^2.1.0",
     "tus-js-client": "2.1.1",
     "uuid": "8.1.0",