Add HISTORY entry for [ci skip]
[ci skip] [skip ci]
- Added repr for ArraySchema [#267](https://github.com/TileDB-Inc/TileDB-Py/pull/267)
- Added repr for Attr [#266](https://github.com/TileDB-Inc/TileDB-Py/pull/266)
+## Bug fixes
+- Fixed accessing domain dimension by name (`domain.dim('dim name')`) [#271](https://github.com/TileDB-Inc/TileDB-Py/pull/271)
+
# TileDB-Py 0.5.6 Release Notes
* Bump release target to [TileDB 1.7.5](https://github.com/TileDB-Inc/TileDB/releases/tag/1.7.5)
