Bump cypress-io/github-action from 2 to 6

Bumps [cypress-io/github-action](https://github.com/cypress-io/github-action) from 2 to 6.
- [Release notes](https://github.com/cypress-io/github-action/releases)
- [Changelog](https://github.com/cypress-io/github-action/blob/master/CHANGELOG.md)
- [Commits](cypress-io/github-action@v2...v6)

---
updated-dependencies:
- dependency-name: cypress-io/github-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/regression-test.yml

@@ -31,7 +31,7 @@ jobs:
       - name: "Remove test files workaround"
         run: find packages/desktop/src -name '*.test.*' -delete && find packages/backend/src -name '*.test.*' -delete
 
-      - uses: cypress-io/github-action@v2
+      - uses: cypress-io/github-action@v6
         with:
           install: false
           command: npm run regression-test:ci