chore: prepare changelog for next release

Author: chris-doehring

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## v3.0.0 - 2021-10-04
+
+- require `dogado/json-api-common:^3.0`
+- add query credential authentication method
+
+See [json-api-common changelog](https://github.com/dogado-group/json-api-common/blob/v3.0.0/CHANGELOG.md) for more details.
+
 ## v2.0.0 - 2021-07-12
 
 - require `dogado/json-api-common:^2.0`