Update pyproject.toml.jinja

add Jostein to maintainers list

Author: yejiyang

templates/pyproject.toml.jinja

@@ -8,7 +8,7 @@ name = "{{ project_name }}"
 version = "{{ package_version }}"
 description = "{{ package_description }}"
 authors = ["Jiyang Ye <jiyang.ye@ngi.no>"]
-maintainers = ["Jiyang Ye <jiyang.ye@ngi.no>"]
+maintainers = ["Jiyang Ye <jiyang.ye@ngi.no>", "Jostein Leira <jostein.leira@ngi.no>"]
 readme = "README.md"
 {% if pdm %}requires-python = ">=3.9,<4.0"{% endif %}
 {% if poetry %}