chore: bump react-github-btn from 1.3.0 to 1.4.0 in /website (#989)

Bumps [react-github-btn](https://github.com/buttons/react-github-btn) from 1.3.0 to 1.4.0.
- [Release notes](https://github.com/buttons/react-github-btn/releases)
- [Commits](buttons/react-github-btn@v1.3.0...v1.4.0)

---
updated-dependencies:
- dependency-name: react-github-btn
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

Author: dependabot[bot]

website/package-lock.json

@@ -22,7 +22,7 @@
     "file-loader": "^6.2.0",
     "react": "^17.0.0",
     "react-dom": "^17.0.0",
-    "react-github-btn": "^1.3.0",
+    "react-github-btn": "^1.4.0",
     "url-loader": "^4.1.1"
   },
   "devDependencies": {