docs: update Release-Process.md
with a reminder to test kata-deploy
Fixes:
### Merge all bump version Pull requests
- The above step will create a GitHub pull request in the Kata projects. Trigger the CI using `/test` command on each bump Pull request.
+ - Trigger the test-kata-deploy workflow on the kata-containers repository bump Pull request using `/test_kata_deploy` (monitor under the "action" tab).
- Check any failures and fix if needed.
- Work with the Kata approvers to verify that the CI works and the pull requests are merged.
