build(deps): bump bootstrap from 4.5.2 to 4.5.3 in /website/client (#12689)

Bumps [bootstrap](https://github.com/twbs/bootstrap) from 4.5.2 to 4.5.3.
- [Release notes](https://github.com/twbs/bootstrap/releases)
- [Commits](https://github.com/twbs/bootstrap/compare/v4.5.2...v4.5.3)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

website/client/package.json

@@ -28,7 +28,7 @@
     "axios": "^0.19.2",
     "axios-progress-bar": "^1.2.0",
     "babel-eslint": "^10.1.0",
-    "bootstrap": "^4.5.2",
+    "bootstrap": "^4.5.3",
     "bootstrap-vue": "^2.17.3",
     "chai": "^4.1.2",
     "core-js": "^3.6.5",