feat: add plain-HTTP listeners for various repository configurations to support non-HTTPS access

Signed-off-by: d9pouces <github@19pouces.net>

tests/dockerfiles/Python-alpine.Dockerfile

@@ -5,6 +5,7 @@ COPY --from=generated-config Python.yaml /config.yaml
 RUN id-configurator apply --config /config.yaml --src /src --dst /dst
 FROM target AS runtime
 ARG PYPI_REPO_PORT
+ARG PYPI_REPO_SCHEME
 # Warm up uv and poetry themselves from the real, network-reachable PyPI
 # while the default index is still in place, so the actual tests below
 # never need anything but the fixture repository configured by
@@ -20,5 +21,5 @@ RUN uv pip install --system idconfiguratortestpkg \
     && python3 -c "import idconfiguratortestpkg"
 RUN mkdir -p /tmp/poetrytest && cd /tmp/poetrytest \
     && poetry init -n --name poetrytest \
-    && poetry source add --priority explicit demo "https://host.docker.internal:${PYPI_REPO_PORT}/simple/" \
+    && poetry source add --priority explicit demo "${PYPI_REPO_SCHEME}://host.docker.internal:${PYPI_REPO_PORT}/simple/" \
     && poetry add idconfiguratortestpkg --source demo