fix(deps): update dependency semver to v7 (#800)

Author: renovate-bot

package.json

@@ -58,7 +58,7 @@
     "gcp-metadata": "^3.0.0",
     "lodash.pickby": "^4.6.0",
     "p-limit": "^2.2.0",
-    "semver": "^6.0.0",
+    "semver": "^7.0.0",
     "source-map": "^0.6.1",
     "split": "^1.0.0"
   },