Update ghcr.io/swissgrc/azure-pipelines-dotnet Docker tag to v9.0.301 (#21)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Dockerfile

@@ -1,5 +1,5 @@
 # Base image containing dependencies used in builder and final image
-FROM ghcr.io/swissgrc/azure-pipelines-dotnet:9.0.300 AS base
+FROM ghcr.io/swissgrc/azure-pipelines-dotnet:9.0.301 AS base
 
 
 # Builder image