Fix SQLAlchemy 2.0 warnings

[galvana]

Closes []

Description Of Changes

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Code Changes

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Steps to Confirm

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Pre-Merge Checklist

• [ ] Issue requirements met
• [ ] All CI pipelines succeeded
• [ ] CHANGELOG.md updated
  • [ ] Add a https://github.com/ethyca/fides/labels/db-migration label to the entry if your change includes a DB migration
  • [ ] Add a https://github.com/ethyca/fides/labels/high-risk label to the entry if your change includes a high-risk change (i.e. potential for performance impact or unexpected regression) that should be flagged
  • [ ] Updates unreleased work already in Changelog, no new entry necessary
• Followup issues:
  • [ ] Followup issues created
  • [ ] No followup issues
• Database migrations:
  • [ ] Ensure that your downrev is up to date with the latest revision on main
  • [ ] Ensure that your downgrade() migration is correct and works
    • [ ] If a downgrade migration is not possible for this change, please call this out in the PR description!
  • [ ] No migrations
• Documentation:
  • [ ] Documentation complete, PR opened in fidesdocs
  • [ ] Documentation issue created in fidesdocs
  • [ ] If there are any new client scopes created as part of the pull request, remember to update public-facing documentation that references our scope registry
  • [ ] No documentation updates required

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2 Skipped Deployments

Project	Deployment	Preview	Comments	Updated (UTC)
fides-plus-nightly	Ignored	Preview		Sep 2, 2025 4:51am
fides-privacy-center	Ignored			Sep 2, 2025 4:51am

[codecov[bot]]

Codecov Report

:x: Patch coverage is 0% with 6 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 65.09%. Comparing base (362de94) to head (89ee666).

Files with missing lines	Patch %	Lines
src/fides/api/models/privacy_notice.py	0.00%	3 Missing :warning:
src/fides/api/models/sql_models.py	0.00%	2 Missing :warning:
src/fides/api/models/privacy_experience.py	0.00%	1 Missing :warning:

:x: Your patch check has failed because the patch coverage (0.00%) is below the target coverage (100.00%). You can increase the patch coverage or adjust the target coverage. :x: Your project check has failed because the head coverage (65.09%) is below the target coverage (85.00%). You can increase the head coverage or adjust the target coverage.

:exclamation: There is a different number of reports uploaded between BASE (362de94) and HEAD (89ee666). Click for more details.

HEAD has 6 uploads less than BASE

Flag	BASE (362de94)	HEAD (89ee666)
	16	10

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #6529       +/-   ##
===========================================
- Coverage   87.68%   65.09%   -22.60%     
===========================================
  Files         482      482               
  Lines       30795    30793        -2     
  Branches     3462     3462               
===========================================
- Hits        27004    20044     -6960     
- Misses       3051     9965     +6914     
- Partials      740      784       +44     

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