Storybook: Deploy PR previews (#107322)

* Create workflow to build storybook

* rename action, gate to non-forks

* fix my branch name

* add upload to gcs

* fix permissions

* login first

* try prod env

* remove login

* clean up GHA

* try to upload storybook to better path

* better cache node modules

* specify parent: false

* write summary

* fix summary url

* comment

* add comment

* fix commit hash

* add issue number to new comment

* remove comment stuff

* codeowners

* change deploy name preview

* fix

.github/CODEOWNERS

@@ -835,6 +835,7 @@ embed.go @grafana/grafana-as-code
 /.github/workflows/i18n-crowdin-download.yml @grafana/grafana-frontend-platform
 /.github/workflows/i18n-crowdin-create-tasks.yml @grafana/grafana-frontend-platform
 /.github/workflows/i18n-verify.yml @grafana/grafana-frontend-platform
+/.github/workflows/deploy-storybook-preview.yml @grafana/grafana-frontend-platform
 /.github/workflows/scripts/crowdin/create-tasks.ts @grafana/grafana-frontend-platform
 /.github/workflows/pr-go-workspace-check.yml @grafana/grafana-app-platform-squad
 /.github/workflows/pr-dependabot-update-go-workspace.yml @grafana/grafana-app-platform-squad