Merge branch 'go386' into 'master'

Fix Go architecture mismatch

See merge request !8

bionic/x86/Dockerfile

@@ -21,7 +21,7 @@ RUN groupadd -g 1000 build \
  && chown build.build /usr/local/bin
 
 RUN git clone https://git.icinga.com/build-docker/scripts.git /usr/local/bin
-RUN icinga-provide-go
+RUN icinga-provide-go 386
 USER build
 ENTRYPOINT ["/usr/local/bin/icinga-build-entrypoint"]
 CMD ["icinga-build-package"]