can't install DCAT

When trying to install DCAT with the script provided in dockerfile.dev I immediately get an error trying to build Docker.

```
RUN pip3 install -e git+https://github.com/ckan/ckanext-dcat.git@v0.0.6#egg=ckanext-dcat && \
pip3 install -r https://raw.githubusercontent.com/ckan/ckanext-dcat/v0.0.6/requirements.txt

```

```
'done'
11.34 Collecting rdflib==4.2.1 (from -r https://raw.githubusercontent.com/ckan/ckanext-dcat/v0.0.6/requirements.txt (line 1))
11.45 Downloading rdflib-4.2.1.tar.gz (889 kB)
11.57 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 889.5/889.5 kB 8.2 MB/s eta 0:00:00
12.31 Preparing metadata (setup.py): started
13.17 Preparing metadata (setup.py): finished with status 'error'
13.17 error: subprocess-exited-with-error
13.17
13.17 × python setup.py egg_info did not run successfully.
13.17 │ exit code: 1
13.17 ╰─> [11 lines of output]
13.17 no previously-included directories found matching 'docs/_build'
13.17 warning: no previously-included files matching '*.pyc' found anywhere in distribution
13.17 warning: no previously-included files matching '*$py.class' found anywhere in distribution
13.17 Traceback (most recent call last):
13.17 File "", line 2, in
13.17 File "", line 34, in
13.17 File "/tmp/pip-install-f2p4v6n1/rdflib_977d0e9dfa1c4a449cab88b10d46a7ee/setup.py", line 46, in
13.17 kwargs['src_root'] = setup_python3()
13.17 File "/tmp/pip-install-f2p4v6n1/rdflib_977d0e9dfa1c4a449cab88b10d46a7ee/setup.py", line 30, in setup_python3
13.17 util.run_2to3(outfiles_2to3)
13.17 AttributeError: module 'distutils.util' has no attribute 'run_2to3'
13.17 [end of output]
13.17
13.17 note: This error originates from a subprocess, and is likely not a problem with pip.
13.18 error: metadata-generation-failed
```

Tried to replace it with a later version compatable with CKAN 2.10
```
#RUN pip3 install -e git+https://github.com/ckan/ckanext-dcat.git@v1.5.0#egg=ckanext-dcat && \
#pip3 install -r ${APP_DIR}/src/ckanext-dcat/requirements.txt && \
```
- then it builds fine, but when I add the extension in my .env folder I get a `PluginNotFound exception dcat` when running Docker. Don't know what might be the problem
ckan-dev-1 | 2024-05-25 14:05:05,953 INFO [ckan.config.environment] Loading templates from /srv/app/src/ckan/ckan/templates
ckan-dev-1 | Traceback (most recent call last):
ckan-dev-1 | File "/usr/bin/ckan", line 8, in
ckan-dev-1 | sys.exit(ckan())
ckan-dev-1 | File "/usr/lib/python3.10/site-packages/click/core.py", line 1130, in __call__
ckan-dev-1 | return self.main(*args, **kwargs)
ckan-dev-1 | File "/usr/lib/python3.10/site-packages/click/core.py", line 1054, in main
ckan-dev-1 | with self.make_context(prog_name, args, **extra) as ctx:
ckan-dev-1 | File "/usr/lib/python3.10/site-packages/click/core.py", line 920, in make_context
ckan-dev-1 | self.parse_args(ctx, args)
ckan-dev-1 | File "/srv/app/src/ckan/ckan/cli/cli.py", line 121, in parse_args
ckan-dev-1 | result = super().parse_args(ctx, args)
ckan-dev-1 | File "/usr/lib/python3.10/site-packages/click/core.py", line 1613, in parse_args
ckan-dev-1 | rest = super().parse_args(ctx, args)
ckan-dev-1 | File "/usr/lib/python3.10/site-packages/click/core.py", line 1378, in parse_args
ckan-dev-1 | value, args = param.handle_parse_result(ctx, opts, args)
ckan-dev-1 | File "/usr/lib/python3.10/site-packages/click/core.py", line 2360, in handle_parse_result
ckan-dev-1 | value = self.process_value(ctx, value)
ckan-dev-1 | File "/usr/lib/python3.10/site-packages/click/core.py", line 2322, in process_value
ckan-dev-1 | value = self.callback(ctx, self, value)
ckan-dev-1 | File "/srv/app/src/ckan/ckan/cli/cli.py", line 131, in _init_ckan_config
ckan-dev-1 | _add_ctx_object(ctx, value)
ckan-dev-1 | File "/srv/app/src/ckan/ckan/cli/cli.py", line 140, in _add_ctx_object
ckan-dev-1 | ctx.obj = CtxObject(path)
ckan-dev-1 | File "/srv/app/src/ckan/ckan/cli/cli.py", line 57, in __init__
ckan-dev-1 | self.app = make_app(raw_config)
ckan-dev-1 | File "/srv/app/src/ckan/ckan/config/middleware/__init__.py", line 27, in make_app
ckan-dev-1 | load_environment(conf)
ckan-dev-1 | File "/srv/app/src/ckan/ckan/config/environment.py", line 69, in load_environment
ckan-dev-1 | p.load_all()
ckan-dev-1 | File "/srv/app/src/ckan/ckan/plugins/core.py", line 222, in load_all
ckan-dev-1 | load(*plugins)
ckan-dev-1 | File "/srv/app/src/ckan/ckan/plugins/core.py", line 238, in load
ckan-dev-1 | service = _get_service(plugin)
ckan-dev-1 | File "/srv/app/src/ckan/ckan/plugins/core.py", line 346, in _get_service
ckan-dev-1 | raise PluginNotFoundException(plugin_name)
ckan-dev-1 | ckan.plugins.core.PluginNotFoundException: dcat
ckan-dev-1 exited with code 0

I get the same problem when trying to install DOI