actions development version

new actions & example workflows:
- label-issue-repo-name - Label issues & PRs with the repository name
- add-issue-label-list - Update issue description with a list of issues of a given label
- update-cff-R - For R packages: update the CITATION.cff file based on the DESCRIPTION file.
minor documentation improvements.

actions 0.1.3

fix: make sure get_latest_release_hash() and get_current_hash() strip newlines in hash strings. (@kelly-sovacool)
- this bug caused a malformed command string in is_ancestor(), which caused mkdocs-mike to fail.
set update-sliding-branch to false by default in post-release action. (#18, @kelly-sovacool)
fix bug that prevented mkdocs-mike from working on repos with no release. (#20, @kelly-sovacool)
fix: resolve symlinks when writing files. (#23, #24, @kelly-sovacool)

fix the draft-release action to properly use the full owner & repo name when creating a draft release. (#13, @kelly-sovacool)
new option in post-release to update a sliding branch (typically named v<major>.<minor>) with new patch releases. (#13, #16, @kelly-sovacool)
fix logic for get_latest_release_tag() to ignore draft releases. (#14, @kelly-sovacool)

fix draft-release action to only use a manual version if it is provided, otherwise default to automatically determine it based on conventional commits. (#10, @kelly-sovacool)
document one-time setup steps for mkdocs-mike action. (#11, @kelly-sovacool)

This is the first release of ccbr_actions! 🎉

mkdocs-mike- Deploy documentation to github pages using mkdocs + mike. (#1, @kelly-sovacool)
draft-release- Draft a new release based on conventional commits and prepare release notes. (#4, @kelly-sovacool)
post-release - Post-release cleanup chores, intended to be triggered by publishing a release. (#4, @kelly-sovacool)

ccbr_actions is a new Python package with helper functions for our custom GitHub Actions. (#1, @kelly-sovacool)