Bump semver from 6.3.0 to 6.3.1 (#1990)

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
...

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package.json

@@ -1310,7 +1310,7 @@
     "querystring": "0.2.1",
     "rsocket-core": "0.0.23",
     "rsocket-tcp-server": "0.0.23",
-    "semver": "6.3.0",
+    "semver": "6.3.1",
     "source-map": "0.5.2",
     "source-map-resolve": "0.5.3",
     "strip-json-comments": "2.0.1",