chore(package): update semver to version 7.3.2

Closes #81

Author: greenkeeper[bot]

package.json

@@ -88,7 +88,7 @@
     "rollup-plugin-babel": "2.7.1",
     "rollup-plugin-filesize": "1.0.1",
     "rollup-watch": "2.5.0",
-    "semver": "5.4.0",
+    "semver": "7.3.2",
     "sinon": "1.17.7",
     "sinon-chai": "2.8.0",
     "webpack": "1.14.0",