Fix Docker build permissions for tests

Add xml-core as build dependency

Author: liturner

debian/control

@@ -3,7 +3,7 @@ Section: utils
 Priority: optional
 Maintainer: Luke Ian Turner <turnertech@outlook.de>
 Standards-Version: 4.7.2
-Build-Depends: debhelper-compat (= 13), libexiv2-dev, libargparse-dev, libxml2-dev (>= 2.12.7), libgtest-dev, doxygen, help2man
+Build-Depends: debhelper-compat (= 13), libexiv2-dev, libargparse-dev, libxml2-dev (>= 2.12.7), libgtest-dev, doxygen, help2man, xml-core
 Vcs-Git: https://github.com/liturner/nmbs.git
 Vcs-Browser: https://github.com/liturner/nmbs
 Homepage: https://github.com/liturner/nmbs

docker/build.dockerfile

@@ -2,16 +2,18 @@ ARG DEBIAN_RELEASE=forky
 FROM debian:${DEBIAN_RELEASE} AS nmbs-build
 
 RUN apt-get update && apt-get install --no-install-recommends --yes \
-    build-essential cmake debhelper help2man libgtest-dev doxygen libargparse-dev libexiv2-dev libxml2-dev pkg-config libglib2.0-dev libnautilus-extension-dev
+    build-essential cmake debhelper help2man libgtest-dev doxygen libargparse-dev libexiv2-dev libxml2-dev pkg-config libglib2.0-dev libnautilus-extension-dev xml-core && \
+    useradd -ms /bin/bash nmbs
 
-WORKDIR /usr/src/nmbs/src
-COPY . .
+USER nmbs
+WORKDIR /home/nmbs/src/nmbs
+COPY --chown=nmbs:nmbs . .
 
 RUN dpkg-buildpackage
 
 
 FROM debian:trixie AS nmbs-trixie
-RUN --mount=type=bind,from=nmbs-build,source=/usr/src/nmbs,target=/tmp/nmbs \
+RUN --mount=type=bind,from=nmbs-build,source=/home/nmbs/src,target=/tmp/nmbs \
     apt-get update &&  \
     apt-get install --no-install-recommends --yes /tmp/nmbs/libnmbs1_1*.deb /tmp/nmbs/nmbs_1*.deb &&  \
     rm -rf /var/lib/apt/lists/* && \