Add missing changeset for AddMojo

Author: niklasga

.changeset/fresh-coats-jog.md

@@ -0,0 +1,13 @@
+---
+"changesets": minor
+---
+
+Introduced more parameters for generating more flexible changesets using the add goal.
+
+You can now create changesets with more prefilled info and with predictable names (useful for testing and dependabot).
+
+The new parameters are `changesetLevel` and `changesetFile` (`changesetContent` was already available).
+```
+mvn changesets:add -DchangesetLevel=patch -DchangesetContent="My change" -DchangesetFile=magic.md
+```
+