Updates to simplify configuration.
What's Changed
* Tidy up developer environment requirements by gilesknap in https://github.com/epics-containers/epics-containers-cli/pull/12
* Bump peaceiris/actions-gh-pages from 3.9.1 to 3.9.3 by dependabot in https://github.com/epics-containers/epics-containers-cli/pull/10
New Contributors
* dependabot made their first contribution in https://github.com/epics-containers/epics-containers-cli/pull/10
**Full Changelog**: https://github.com/epics-containers/epics-containers-cli/compare/0.4.1...0.5.0