Bump codecov from 3.7.0 to 3.7.1 in /client (#1654)

Bumps [codecov](https://github.com/codecov/codecov-node) from 3.7.0 to 3.7.1.
- [Release notes](https://github.com/codecov/codecov-node/releases)
- [Commits](https://github.com/codecov/codecov-node/compare/v3.7.0...v3.7.1)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

client/package.json

@@ -78,7 +78,7 @@
     "cheerio": "^1.0.0-rc.3",
     "clean-css": "^4.2.3",
     "clean-webpack-plugin": "^3.0.0",
-    "codecov": "^3.7.0",
+    "codecov": "^3.7.1",
     "connect-history-api-fallback": "^1.6.0",
     "css-loader": "^3.6.0",
     "eslint": "^7.4.0",