chore(deps): update ghcr.io/containerbase/base docker tag to v10.3.0

| datasource | package                    | from   | to     |
| ---------- | -------------------------- | ------ | ------ |
| docker     | ghcr.io/containerbase/base | 10.2.6 | 10.3.0 |

Author: renovate[bot]

Dockerfile

@@ -3,7 +3,7 @@ ARG RENOVATE_VERSION=37.240.1
 
 # Base image
 #============
-FROM ghcr.io/containerbase/base:10.2.6@sha256:bfaa277ebb8e51fe33167250c55dc857fbf929916457e3559676ee0416cda162 AS base
+FROM ghcr.io/containerbase/base:10.3.0@sha256:cae7416cdddf385891ac4064db49889359a4a08089eeca534ab720d422085deb AS base
 
 LABEL maintainer="Michael Kriese <michael.kriese@visualon.de>"
 LABEL name="renovate"