Add preview environment workflows

[pchico83]

Unify https://github.com/okteto/kubernetes-preview-environment and https://github.com/okteto/movies

[github-actions[bot]]

Your preview environment pr-36-cindylopez has been deployed.

Preview environment endpoints are available at:

• https://movies-pr-36-cindylopez.cloud.okteto.net
• https://movies-pr-36-cindylopez.cloud.okteto.net/api