deploy storybook to github pages

Making the story book available on github pages makes it easier to use for developers since they do not have to run the storybook locally

example from the nl-design-system: https://github.com/nl-design-system/rvo/blob/43ae5019906b3e6b3d5c08927ad93d1502cdd128/.github/workflows/continuous-deployment.yml#L181