build(deps-dev): bump @types/semver from 5.5.0 to 6.0.0

Bumps [@types/semver](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/semver) from 5.5.0 to 6.0.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/semver)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -122,7 +122,7 @@
     "@types/pify": "^3.0.1",
     "@types/pretty-ms": "^4.0.0",
     "@types/proxyquire": "^1.3.28",
-    "@types/semver": "^5.5.0",
+    "@types/semver": "^6.0.0",
     "@types/sinon": "^7.0.11",
     "@types/username": "^3.0.0",
     "@types/webpack": "^4.4.27",

yarn.lock

@@ -1109,10 +1109,10 @@
   resolved "https://registry.yarnpkg.com/@types/relateurl/-/relateurl-0.2.28.tgz#6bda7db8653fa62643f5ee69e9f69c11a392e3a6"
   integrity sha1-a9p9uGU/piZD9e5p6facEaOS46Y=
 
-"@types/semver@^5.5.0":
-  version "5.5.0"
-  resolved "https://registry.yarnpkg.com/@types/semver/-/semver-5.5.0.tgz#146c2a29ee7d3bae4bf2fcb274636e264c813c45"
-  integrity sha512-41qEJgBH/TWgo5NFSvBCJ1qkoi3Q6ONSF2avrHq1LVEZfYpdHmj0y9SuTK+u9ZhG1sYQKBL1AWXKyLWP4RaUoQ==
+"@types/semver@^6.0.0":
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/@types/semver/-/semver-6.0.0.tgz#86ba89f02a414e39c68d02b351872e4ed31bd773"
+  integrity sha512-OO0srjOGH99a4LUN2its3+r6CBYcplhJ466yLqs+zvAWgphCpS8hYZEZ797tRDP/QKcqTdb/YCN6ifASoAWkrQ==
 
 "@types/serve-static@*":
   version "1.13.2"