Merge branch 'st-1376-2' into 'master'

ST-1376 bump release

See merge request ska-telescope/ska-tango-images!181

.make @ 89355ba9

-Subproject commit 5af9b3e0ca97633f77ac472b43797a7d0f6bb60d
+Subproject commit 89355ba95132a004cb9c5367f48b92db88d31750

.release

-release=0.3.26
-tag=0.3.26
+release=0.4.0
+tag=0.4.0

charts/ska-tango-base/Chart.yaml

 apiVersion: v2
-appVersion: 0.3.23
 description: A Helm chart for deploying the TANGO base system on Kubernetes
 name: ska-tango-base
 version: 0.4.0
+appVersion: 0.4.0
 icon: https://www.skatelescope.org/wp-content/uploads/2016/07/09545_NEW_LOGO_2014.png
 dependencies:
 - name: ska-tango-util