chore(package): update @semantic-release/git to version 7.0.18

Closes #117

Author: greenkeeper[bot]

package.json

@@ -43,7 +43,7 @@
   },
   "devDependencies": {
     "@semantic-release/changelog": "3.0.0",
-    "@semantic-release/git": "7.0.4",
+    "@semantic-release/git": "7.0.18",
     "@semantic-release/github": "5.0.2",
     "@semantic-release/npm": "5.0.4",
     "@vue/cli-plugin-babel": "3.0.3",