Add order_weight

[ogenstad]

Will be required for tests in opsmill/infrahub#4894.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

@@             Coverage Diff             @@
##           develop     #132      +/-   ##
===========================================
+ Coverage    65.33%   65.40%   +0.07%     
===========================================
  Files           76       76              
  Lines         6903     6923      +20     
  Branches      1367     1367              
===========================================
+ Hits          4510     4528      +18     
+ Misses        2027     2026       -1     
- Partials       366      369       +3     

Flag	Coverage Δ
python-3.10	44.40% <0.00%> (+0.03%)	⬆️
python-3.11	44.40% <0.00%> (+0.03%)	⬆️
python-3.12	44.40% <0.00%> (+0.03%)	⬆️
python-3.9	43.52% <0.00%> (-0.15%)	⬇️
python-filler-3.12	23.84% <100.00%> (+0.03%)	⬆️

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Files with missing lines	Coverage Δ
infrahub_sdk/schema.py	73.62% <100.00%> (-0.14%)	⬇️

... and 9 files with indirect coverage changes