Update dependency semver to v6.3.1

Author: renovate[bot]

package.json

@@ -78,7 +78,7 @@
     "resolve": "1.12.0",
     "resolve-url-loader": "3.1.0",
     "sass-loader": "7.2.0",
-    "semver": "6.3.0",
+    "semver": "6.3.1",
     "style-loader": "1.0.0",
     "terser-webpack-plugin": "1.4.1",
     "ts-pnp": "1.1.4",