Sync up version with CHANGELOG

Author: soxofaan

CHANGELOG.md

@@ -19,7 +19,7 @@ and start a new "In Progress" section above it.
 
 <!-- start-of-changelog -->
 
-## In progress
+## In progress: 0.129.0
 
 - array_apply: sub-process should now work on all supported processes ([Open-EO/openeo-geopyspark-driver#1064](https://github.com/Open-EO/openeo-geopyspark-driver/issues/1064))
 

openeo_driver/_version.py

@@ -1 +1 @@
-__version__ = "0.128.0a1"
+__version__ = "0.129.0a1"