chore: Bump released version

Author: nellh

helm/openneuro/Chart.yaml

@@ -5,7 +5,7 @@ description: OpenNeuro production deployment chart
 home: https://openneuro.org
 sources:
   - https://github.com/openNeuroOrg/openneuro
-appVersion: 4.29.4
+appVersion: 4.29.6
 dependencies:
   - name: redis
     version: 17.1.4