[Tools] Fix and improve tools used to deploy PCUI for local testing

[gmarciani]

Description

Fix and improve tools used to deploy PCUI for local testing. In particular:

1. Fixed the script used to update the lambda function with local code. It was broken because it was looking for the lambda function using a wrong name.
2. Made deploy.sh able to update the lambda, so that the developer can now deploy local code with a single script.
3. Added a success log line at the end of the above script to let the user kwno it succeeded.

How Has This Been Tested?

1. Used both scripts to deploy PCUI for local testing.

PR Quality Checklist

• [ ] I added tests to new or existing code
• [ ] I removed hardcoded strings and used react-i18next library (useTranslation hook and/or Trans component), see an example here
• [ ] I made sure no sensitive info gets logged at any time in the codebase (see here) (e.g. no user info or details, no stacktraces, etc.)
• [ ] I made sure that any GitHub issue solved by this PR is correctly linked
• [ ] I checked that infrastructure/update_infrastructure.sh runs without any error
• [ ] I checked that npm run build builds without any error
• [ ] I checked that clusters are listed correctly
• [ ] I checked that a new cluster can be created (config is produced and dry run passes)
• [ ] I checked that login and logout work as expected

In order to increase the likelihood of your contribution being accepted, please make sure you have read both the Contributing Guidelines and the Project Guidelines

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.