build(deps-dev): bump @babel/cli from 7.7.7 to 7.8.0 in /backend

Bumps [@babel/cli](https://github.com/babel/babel) from 7.7.7 to 7.8.0.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.7.7...v7.8.0)

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

backend/package.json

@@ -97,7 +97,7 @@
     "xregexp": "^4.2.4"
   },
   "devDependencies": {
-    "@babel/cli": "~7.7.7",
+    "@babel/cli": "~7.8.0",
     "@babel/core": "~7.7.7",
     "@babel/node": "~7.8.0",
     "@babel/plugin-proposal-throw-expressions": "^7.8.0",

backend/yarn.lock

@@ -33,10 +33,10 @@
   resolved "https://registry.yarnpkg.com/@apollographql/graphql-playground-html/-/graphql-playground-html-1.6.24.tgz#3ce939cb127fb8aaa3ffc1e90dff9b8af9f2e3dc"
   integrity sha512-8GqG48m1XqyXh4mIZrtB5xOhUwSsh1WsrrsaZQOEYYql3YN9DEu9OOSg0ILzXHZo/h2Q74777YE4YzlArQzQEQ==
 
-"@babel/cli@~7.7.7":
-  version "7.7.7"
-  resolved "https://registry.yarnpkg.com/@babel/cli/-/cli-7.7.7.tgz#56849acbf81d1a970dd3d1b3097c8ebf5da3f534"
-  integrity sha512-XQw5KyCZyu/M8/0rYiZyuwbgIQNzOrJzs9dDLX+MieSgBwTLvTj4QVbLmxJACAIvQIDT7PtyHN2sC48EOWTgaA==
+"@babel/cli@~7.8.0":
+  version "7.8.0"
+  resolved "https://registry.yarnpkg.com/@babel/cli/-/cli-7.8.0.tgz#e9ed4c3dbb163de5034c18979c118ed1aa294e05"
+  integrity sha512-/zOi56gIH3jBmnrfUvVf8MOMqf3hfFou2ONRYdRRpgnBSi0dUkiO+usu44YHsOEJqqwPkijBsiDKscQizouoag==
   dependencies:
     commander "^4.0.1"
     convert-source-map "^1.1.0"