Update Dockerfile registry.access.redhat.com/ubi8/dotnet-60 to v6.0-56 (#17)

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

Author: renovate[bot]

docker/Dockerfile

@@ -1,10 +1,10 @@
-FROM registry.access.redhat.com/ubi8/dotnet-60:6.0-32.20230511125009 as builder
+FROM registry.access.redhat.com/ubi8/dotnet-60:6.0-56 as builder
 WORKDIR /opt/app-root/src
 COPY --chown=1001 . .
 RUN dotnet publish -c Release
 
 
-FROM registry.access.redhat.com/ubi8/dotnet-60:6.0-32.20230511125009
+FROM registry.access.redhat.com/ubi8/dotnet-60:6.0-56
 EXPOSE 8081
 ENV ASPNETCORE_URLS=http://*:8081
 COPY --from=builder /opt/app-root/src/bin /opt/app-root/src/bin