Preserve Wrangler logs during docs deployment CI runs (#24371)

Adds a log collection step to debug errors like
https://github.com/zed-industries/zed/actions/runs/13175284280/job/36773129216#step:8:29

During testing though, the CI had passed, so 500 seems to be unrelated
to Zed changes:
https://github.com/zed-industries/zed/actions/runs/13175800537/job/36774702686

Release Notes:

- N/A

.github/workflows/deploy_cloudflare.yml

@@ -63,3 +63,10 @@ jobs:
           apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
           accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
           command: deploy .cloudflare/docs-proxy/src/worker.js
+
+      - name: Preserve Wrangler logs
+        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4
+        if: always()
+        with:
+          name: wrangler_logs
+          path: /home/runner/.config/.wrangler/logs/