persist schema yml unrendered_config before rendering

[MichelleArk]

Resolves #

Problem

Solution

Checklist

• [ ] I have read the contributing guide and understand what's expected of me.
• [ ] I have run this code in development, and it appears to resolve the stated issue.
• [ ] This PR includes tests, or tests are not required or relevant for this PR.
• [ ] This PR has no interface changes (e.g., macros, CLI, logs, JSON artifacts, config files, adapter interface, etc.) or this PR has already received feedback and approval from Product or DX.
• [ ] This PR includes type annotations for new and modified functions.

[github-actions[bot]]

Thank you for your pull request! We could not find a changelog entry for this change. For details on how to document a change, see the contributing guide.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 95.95960% with 4 lines in your changes missing coverage. Please review.

Project coverage is 89.09%. Comparing base (1fd4d2e) to head (5b0bce0). Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10487      +/-   ##
==========================================
+ Coverage   89.03%   89.09%   +0.06%     
==========================================
  Files         182      182              
  Lines       23195    23288      +93     
==========================================
+ Hits        20651    20748      +97     
+ Misses       2544     2540       -4     

Flag	Coverage Δ
integration	86.31% <95.95%> (+0.07%)	:arrow_up:
unit	62.22% <69.69%> (+0.03%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
Unit Tests	62.22% <69.69%> (+0.03%)	:arrow_up:
Integration Tests	86.31% <95.95%> (+0.07%)	:arrow_up:

[MichelleArk]

Corresponding schemas PR: https://github.com/dbt-labs/schemas.getdbt.com/pull/60