Bump semver from 5.5.0 to 5.6.0

Bumps [semver](https://github.com/npm/node-semver) from 5.5.0 to 5.6.0.
- [Release notes](https://github.com/npm/node-semver/releases)
- [Commits](npm/node-semver@v5.5.0...v5.6.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot-support

package-lock.json

@@ -103,7 +103,7 @@
 		"import-local": "^2.0.0",
 		"js-yaml": "^3.10.0",
 		"opn": "^5.1.0",
-		"semver": "^5.5.0",
+		"semver": "^5.6.0",
 		"supports-color": "^5.1.0",
 		"treeify": "^1.0.1",
 		"update-notifier": "^2.5.0",