Description

pycsw depends on jinja2 for some reason, and this isn't declared in requirements.txt

Environment

• operating system: mac/linux
• Python version: 3.10
• pycsw version: master (c532be3aba731bfee093620c40f64160c3901f8e)

Steps to Reproduce

>>> from pycsw import server
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/cdestigter/code/pycsw/pycsw/server.py", line 48, in <module>
    from pycsw.ogc.api.util import yaml_load
  File "/Users/cdestigter/code/pycsw/pycsw/ogc/api/util.py", line 45, in <module>
    from jinja2 import Environment, FileSystemLoader
ModuleNotFoundError: No module named 'jinja2'