chore(@semantic-release/git) update to latest version

Author: greenkeeper[bot]

package.json

@@ -42,7 +42,7 @@
     "meow": "4.0.0"
   },
   "devDependencies": {
-    "@semantic-release/git": "4.0.1",
+    "@semantic-release/git": "4.0.2",
     "@semantic-release/npm": "3.2.4",
     "ajv": "6.4.0",
     "ajv-keywords": "3.1.0",