ST-1325: bumped version to 0.3.15

.release

-release=0.3.14
-tag=0.3.14
+release=0.3.15
+tag=0.3.15

charts/ska-tango-base/Chart.yaml

 apiVersion: v2
-appVersion: 0.3.14
+appVersion: 0.3.15
 description: A Helm chart for deploying the TANGO base system on Kubernetes
 name: ska-tango-base
-version: 0.3.14
+version: 0.3.15
 icon: https://www.skatelescope.org/wp-content/uploads/2016/07/09545_NEW_LOGO_2014.png
 dependencies:
 - name: ska-tango-util
-  version: 0.3.14
+  version: 0.3.15
   repository: file://../ska-tango-util

charts/ska-tango-util/Chart.yaml

@@ -2,8 +2,8 @@ apiVersion: v2
 description: A Helm chart library of utilities for TANGO deployents
 name: ska-tango-util
 type: library
-appVersion: 0.3.14
-version: 0.3.14
+appVersion: 0.3.15
+version: 0.3.15
 icon: https://www.skatelescope.org/wp-content/uploads/2016/07/09545_NEW_LOGO_2014.png
 maintainers:
 - name: Matteo Di Carlo

images/ska-tango-images-pytango-builder-alpine/.release

-release=9.3.31
-tag=9.3.31
+release=9.3.32
+tag=9.3.32
\ No newline at end of file

images/ska-tango-images-pytango-runtime-alpine/.release

-release=9.3.18
-tag=9.3.18
+release=9.3.19
+tag=9.3.19

images/ska-tango-images-tango-dsconfig-alpine/.release

-release=1.5.7
-tag=1.5.7
+release=1.5.8
+tag=1.5.8

images/ska-tango-images-tango-itango-alpine/.release

-release=9.3.11
-tag=9.3.11
+release=9.3.12
+tag=9.3.12