Bump cypress from 4.12.1 to 5.0.0 in /packages/webapp

Bumps [cypress](https://github.com/cypress-io/cypress) from 4.12.1 to 5.0.0.
- [Release notes](https://github.com/cypress-io/cypress/releases)
- [Commits](https://github.com/cypress-io/cypress/compare/v4.12.1...v5.0.0)

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

packages/webapp/package.json

@@ -37,7 +37,7 @@
     "typeface-metropolis": "^0.0.74"
   },
   "devDependencies": {
-    "cypress": "^4.10.0",
+    "cypress": "^5.0.0",
     "cypress-file-upload": "^4.0.7",
     "eslint": "^7.7.0",
     "eslint-config-prettier": "^6.11.0",