Automate Terraform-examples website updates

[ttarczynski]

We have a Web GUI for terraform-examples at: https://containersolutions.github.io/terraform-examples/ This website was last updated in May, so it's far behind the main branch of the repository.

TODO

• learn how to update it (CONTRIBUTING.md / Updating Web UI)
• make the update using the current process
• plan how to get fully automated updates done by the CI
• Implement the fully automated website update process

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Some hints on what's used for generating the website:

1. https://github.com/ContainerSolutions/terraform-examples/tree/terraform-examples-UI
2. https://github.com/ContainerSolutions/terraform-examples/blob/terraform-examples-UI/README.md
3. https://github.com/ContainerSolutions/terraform-examples/blob/main/RELEASE.md
4. https://github.com/ContainerSolutions/terraform-examples/blob/terraform-examples-UI/release.sh

[ttarczynski]

The current update process is documented in:

• https://github.com/ContainerSolutions/terraform-examples/blob/main/CONTRIBUTING.md#updating-web-ui