fix: pydantic v2 backwards compatibility

[adamkirchberger]

No description provided.

[netlify]

✅ Deploy Preview for nectl ready!

Name	Link
🔨 Latest commit	a7ecfe0
🔍 Latest deploy log	https://app.netlify.com/sites/nectl/deploys/653fbea5f88f340008d1013d
😎 Deploy Preview	https://deploy-preview-26--nectl.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[codecov]

Codecov Report

Merging #26 (a7ecfe0) into main (e053c23) will increase coverage by 1.66%.
Report is 9 commits behind head on main.
The diff coverage is 88.11%.

@@            Coverage Diff             @@
##             main      #26      +/-   ##
==========================================
+ Coverage   92.35%   94.02%   +1.66%     
==========================================
  Files          19       20       +1     
  Lines         916      954      +38     
==========================================
+ Hits          846      897      +51     
+ Misses         70       57      -13     

Files	Coverage Δ
nectl/__init__.py	100.00% <100.00%> (ø)
nectl/configs/drivers/__init__.py	100.00% <100.00%> (ø)
nectl/configs/render.py	98.70% <100.00%> (ø)
nectl/configs/utils.py	96.55% <100.00%> (+0.12%)	⬆️
nectl/datatree/cli.py	87.23% <100.00%> (ø)
nectl/datatree/facts_utils.py	69.00% <100.00%> (ø)
nectl/datatree/hosts.py	100.00% <100.00%> (ø)
nectl/nectl.py	100.00% <100.00%> (ø)
nectl/settings.py	96.49% <60.00%> (-3.51%)	⬇️
nectl/configs/cli.py	85.71% <69.69%> (+16.82%)	⬆️