* Bump antsibull-changelog version.
* Flag all dotfiles, except .keep and .gitkeep.
* Enable ignoring other fragment extensions.
(cherry picked from commit fbfc0f99eb)
Replace the ansible-base changelog linting and generation tool with antsibull-changelog and make it available for linting collections. Previously changelog linting was limited to ansible-base.
* use security_fix category in changelogs for CVEs
* these fragments do not say CVE but are security fixes
Co-authored-by: Alicia Cozine <acozine@users.noreply.github.com>
