build(deps): bump js-cookie from 2.2.0 to 3.0.7 in /litemall-admin

Bumps [js-cookie](https://github.com/js-cookie/js-cookie) from 2.2.0 to 3.0.7.
- [Release notes](https://github.com/js-cookie/js-cookie/releases)
- [Commits](js-cookie/js-cookie@v2.2.0...v3.0.7)

---
updated-dependencies:
- dependency-name: js-cookie
  dependency-version: 3.0.7
  dependency-type: direct:production
...

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

Author: dependabot[bot]

litemall-admin/package.json

@@ -51,7 +51,7 @@
     "echarts": "4.2.1",
     "element-ui": "2.15.6",
     "file-saver": "1.3.8",
-    "js-cookie": "2.2.0",
+    "js-cookie": "3.0.7",
     "lodash": "^4.17.11",
     "normalize.css": "7.0.0",
     "nprogress": "0.2.0",