jhbuild: Exit immediately if a module fails to build

There's no point in continuing the build if one module fails to build and this
also helps post-mortem CI error diagnostics.

Author: philn

images/wkdev_sdk/Containerfile

@@ -116,7 +116,7 @@ RUN git clone https://gitlab.gnome.org/GNOME/jhbuild.git && \
     make && \
     make install && \
     export JHBUILD_RUN_AS_ROOT=1 WKDEV_IN_IMAGE_BUILD=1 && \
-    jhbuild --no-interact build && \
+    jhbuild --exit-on-error --no-interact build && \
     rm -r /var/tmp/jhbuild
 
 # Register basic JHBuild environment