Traceback when invoking `canu` in a local env

[rustydb]

Describe the bug
A clear and concise description of what the bug is.
After installing canu locally, running any validate commands produce a Traceback.

canu validate shcd -a V1 --shcd Cray\ Inc-Shasta\ RiverSystemForServiceTraining_SHCD_RevA8.xlsx --tabs 40G_10G,NMN,HMN --corners J28,T54,J15,T31,J20,U58 --json
Traceback (most recent call last):
  File "/Users/cspiller/brook/canu-venv/bin/canu", line 33, in <module>
    sys.exit(load_entry_point('canu==1.6.20.post94', 'console_scripts', 'canu')())
  File "/Users/cspiller/brook/canu-venv/lib/python3.10/site-packages/click/core.py", line 1128, in __call__
    return self.main(*args, **kwargs)
  File "/Users/cspiller/brook/canu-venv/lib/python3.10/site-packages/click/core.py", line 1053, in main
    rv = self.invoke(ctx)
  File "/Users/cspiller/brook/canu-venv/lib/python3.10/site-packages/click/core.py", line 1659, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/cspiller/brook/canu-venv/lib/python3.10/site-packages/click/core.py", line 1659, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/cspiller/brook/canu-venv/lib/python3.10/site-packages/click/core.py", line 1395, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/cspiller/brook/canu-venv/lib/python3.10/site-packages/click/core.py", line 754, in invoke
    return __callback(*args, **kwargs)
  File "/Users/cspiller/brook/canu-venv/lib/python3.10/site-packages/click/decorators.py", line 26, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/Users/cspiller/brook/canu-venv/lib/python3.10/site-packages/canu/validate/shcd/shcd.py", line 147, in shcd
    json_output(node_list, factory, architecture, shcd, out)
  File "/Users/cspiller/brook/canu-venv/lib/python3.10/site-packages/canu/validate/shcd/shcd.py", line 1227, in json_output
    factory.validate_paddle(paddle)
  File "/Users/cspiller/brook/canu-venv/lib/python3.10/site-packages/network_modeling/NetworkNodeFactory.py", line 405, in validate_paddle
    with open(ccj_schema_file, "r") as file:
FileNotFoundError: [Errno 2] No such file or directory: '/Users/cspiller/brook/canu-venv/lib/python3.10/site-packages/network_modeling/schema/paddle-schema.json'

This only happens in local environments, it seems the RPM doesn't have this problem.

canu Version

If able, please include:

• The output of canu --version

To Reproduce
Steps to reproduce the behavior:

1. Install canu

   pip install .
   pip install .[network_modeling]

2. Grab an SCHD and try to validate it.

Expected behavior
A clear and concise description of what you expected to happen.

Should produce valid JSON; no Traceback.