fix: migrate away from cloudflare-pages action as it is deprecated

[svnnynior]

Related GitHub issues

Close #141

What have been done

• Changed the deploy-to-staging step in .github/workflows/staging.yml to use cloudflare/wrangler-action@v3 instead of the deprecated cloudflare/pages-action@v1

Note: With this change, we will lose the deployments records as it is not yet supported by this wrangler action. (It is mentioned in the wrangler's repo README and this issue)

Screenshot (if any)

N/A

Help needed (if any)

• Could you temporarily set the staging workflow to run on this branch? As I cannot test it on my forked repo because it requires secrets

[Th1nkK1D]

The action is running here: https://github.com/wevisdemo/parliament-watch/actions/runs/11587175092 should take around 40-50 mins for the build this days 💀

Someone pointed out that we can trigger a workflow from a different branch but unfortunately only for the branch on the original repository. So I checkout your branch into the wrangler-action branch of this repo and triggered the workflow with gh workflow run "Build and deploy to staging" --ref "wrangler-action" just for the sake of testing before merge.