fix: Use PIP_OPTS for setup.py based install

The PIP_OPTS varenv is needed both when using requirement.txt or setup.py.

templates/gitlab-ci-python.yml

@@ -106,7 +106,8 @@ variables:
       pip install ${PIP_OPTS} -r "${REQUIREMENTS_FILE}"
     elif [[ -f "${SETUP_PY_DIR}/setup.py" ]]; then
       log_info "--- installing from ${SETUP_PY_DIR}/setup.py file"
-      pip install "${SETUP_PY_DIR}/"
+      # shellcheck disable=SC2086
+      pip install ${PIP_OPTS} "${SETUP_PY_DIR}/"
     else
       log_info "--- no requirements or setup.py file found from env or file ${REQUIREMENTS_FILE} - ${SETUP_PY_DIR}/setup.py does not exist"
     fi
@@ -129,7 +130,8 @@ variables:
       pip install ${PIP_OPTS} -r "${DOCS_REQUIREMENTS_FILE}"
     elif [[ -f "${SETUP_PY_DIR}/setup.py" ]]; then
       log_info "--- installing from ${SETUP_PY_DIR}/setup.py file"
-      pip install "${SETUP_PY_DIR}/"
+      # shellcheck disable=SC2086
+      pip install ${PIP_OPTS} "${SETUP_PY_DIR}/"
     else
       log_info "--- no doc requirements file found from env or file ${DOCS_REQUIREMENTS_FILE} - ${SETUP_PY_DIR}/setup.py does not exist"
     fi