devel/git-cliff: update to 0.2.5

[0.2.5] - 2021-08-20
Documentation
-Mention breaking changes for templating
-Update template examples to mention how to contribute

Features
-Add breaking_description to the template context (#4)

Miscellaneous Tasks
-Show the committed changes before creating a tag

[0.2.4] - 2021-08-20
Bug Fixes
-Change the config file location for crates.io release

(pin)