Fix for dbt_project.yml "tests" config resulting in incorrect state:modified

[gshank]

Resolves #11146

Problem

If the data_tests config in dbt_project.yml is named "tests", the unrendered_config for data tests is incorrect, resulting in incorrect state:modified results.

Solution

Rename the "tests" dictionary to "data_tests", so unrendered config is correctly generated.

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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.84%. Comparing base (a175793) to head (4bea5f2).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #11166      +/-   ##
==========================================
- Coverage   88.88%   88.84%   -0.05%     
==========================================
  Files         187      187              
  Lines       24001    24011      +10     
==========================================
- Hits        21334    21332       -2     
- Misses       2667     2679      +12     

Flag	Coverage Δ
integration	86.15% <100.00%> (-0.05%)	⬇️
unit	62.03% <50.00%> (+0.04%)	⬆️

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

Components	Coverage Δ
Unit Tests	62.03% <50.00%> (+0.04%)	⬆️
Integration Tests	86.15% <100.00%> (-0.05%)	⬇️

[aranke]

LGTM, thanks!

[aranke]

Nit: remove print