chore: allow dev dockerfile to build (#14470)

There were 2 issues that prevented this dockerfile from building:
1) The base ubuntu image doesn't have git installed. This is required by `./scripts/python_build_utils.py` when normalizing version strings in setup.py
2) robot-server depends on server-utils but that was never copied or installed in the dockerfile

Dockerfile

@@ -1,14 +1,17 @@
 FROM ubuntu as base
 ENV TZ=Etc/UTC
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
-RUN apt-get update && apt-get install --yes python3 pip pkg-config libsystemd-dev
+RUN apt-get update && apt-get install --yes python3 pip pkg-config libsystemd-dev git
 
 FROM base as builder
 COPY scripts scripts
 COPY LICENSE LICENSE
 
 COPY shared-data shared-data
 
+COPY server-utils/setup.py server-utils/setup.py
+COPY server-utils/server_utils server-utils/server_utils
+
 COPY api/MANIFEST.in api/MANIFEST.in
 COPY api/setup.py api/setup.py
 COPY api/pypi-readme.rst api/pypi-readme.rst
@@ -18,6 +21,7 @@ COPY robot-server/setup.py robot-server/setup.py
 COPY robot-server/robot_server robot-server/robot_server
 
 RUN cd shared-data/python && python3 setup.py bdist_wheel -d /dist/
+RUN cd server-utils && python3 setup.py bdist_wheel -d /dist/
 RUN cd api && python3 setup.py bdist_wheel -d /dist/
 RUN cd robot-server && python3 setup.py bdist_wheel -d /dist/