v1.122.0

Ignore template files when executing `atmos validate stacks` @Cerebrovinny (#830)

what

• Ignore template files when executing atmos validate stacks (exclude template files .yaml.tmpl, .yml.tmpl, .tmpl from being validated)
• Update documentation to clarify template file handling behavior

why

• Some template files are not valid YAML files, and should not be validated before processing the templates
• Preserve backward compatibility for existing configurations that previously used .tmpl stack manifest files

Refactor preview deployments workflows @goruha (#836)

what

• Decouple website-deploy-preview deployment workflow to website-preview-build and website-preview-deploy workflows
• Renamed website-destroy-preview workflow to website-preview-destroy
• Inactivate GitHub deployment on preview destroy workflow

why

• Support preview environment deployments for PRs from forks
• Follow workflow naming consistency
• Support cleaning up environments on preview destroy