Merge #3968 Install meta tester at system level again

CHANGELOG.md

@@ -17,7 +17,7 @@ All notable changes to this project will be documented in this file.
 ### Internal
 
 - [Netkan] Re-sort module properties after merging (#3957 by: HebaruSan)
-- [Netkan] Update and optimize meta tester and inflator images (#3958 by: HebaruSan; reviewed: techman83)
+- [Netkan] Update and optimize meta tester and inflator images (#3958, #3968 by: HebaruSan; reviewed: techman83)
 
 ## v1.34.2 (Minkowski²)
 

Dockerfile.metadata

@@ -35,10 +35,10 @@ RUN apt-get install -y --no-install-recommends \
 # Install the meta tester's Python code and its Infra dep
 ENV PIP_ROOT_USER_ACTION=ignore
 RUN pip3 install --upgrade pip
-RUN pip3 install --user 'git+https://github.com/KSP-CKAN/NetKAN-Infra#subdirectory=netkan'
-RUN pip3 install --user 'git+https://github.com/KSP-CKAN/xKAN-meta_testing'
+RUN pip3 install 'git+https://github.com/KSP-CKAN/NetKAN-Infra#subdirectory=netkan'
+RUN pip3 install 'git+https://github.com/KSP-CKAN/xKAN-meta_testing'
 
-# Prune unused deps (`--user` is implicit for uninstall)
+# Prune unused deps
 RUN pip3 --no-input uninstall -y flask gunicorn werkzeug
 
 # The image we'll actually use
@@ -49,7 +49,7 @@ RUN apt-get clean \
     && rm -r /var/lib/apt/lists /var/log/dpkg.log /var/log/apt
 
 # Extract built Python packages from the build image
-COPY --from=build /root/.local /root/.local
+COPY --from=build /usr/local /usr/local
 
 # Install the .NET assemblies the meta tester uses
 ADD netkan.exe /usr/local/bin/.