feat: add codemod for upcoming v0.55.0-v0.56.0

[wschurman]

Why

This adds a codemod for #407-#410 changes.

How

Replace .loader calls with .knexLoader where applicable.

Test Plan

Run the test.

[wschurman]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
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• feat!: Add sql template and loader method #414
• feat: add codemod for upcoming v0.55.0-v0.56.0 #413 👈 (View in Graphite)
• feat: add entity-database-adapter-knex-testing-utils containing StubPostgresDatabaseAdapter #412
• chore: add CLAUDE.md and disallow test.skip #411
• feat!: move knex loaders into entity-database-adapter-knex package #410
• chore: move knex-specific loader logic out of EntityDataManager #408 : 1 other dependent PR (#409 )
• feat!: Move knex-specific loader methods to knexLoader #407
• main

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (fe53e07) to head (39f26e6).

Additional details and impacted files

@@                                                              Coverage Diff                                                              @@
##           wschurman/02-01-feat_add_entity-database-adapter-knex-testing-utils_containing_stubpostgresdatabaseadapter      #413    +/-   ##
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  Coverage                                                                                                      100.00%   100.00%            
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  Files                                                                                                             106       106            
  Lines                                                                                                           13941     13941            
  Branches                                                                                                          685      1205   +520     
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  Hits                                                                                                            13941     13941            

Flag	Coverage Δ
integration	17.55% <ø> (ø)
unittest	97.42% <ø> (ø)

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