improve get missing filepaths utils logic

[BAntonellini]

Replaced simple string work of get_missing_file_paths utils function for a proper pathlib.Path approach.

With these:

• Only existent files are added to hooks
• dbt project must no longer be nested in a subfolder: it can be at the same level of pre-commit-config.yml, or in any level of depth

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (15cff54) 100.00% compared to head (3a31b0b) 100.00%.

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Additional details and impacted files

@@            Coverage Diff             @@
##              main      #105    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files           45        47     +2     
  Lines         2041      2584   +543     
  Branches       252       272    +20     
==========================================
+ Hits          2041      2584   +543     

Impacted Files	Coverage Δ
pre_commit_dbt/check_script_has_no_table_name.py	100.00% <100.00%> (ø)
pre_commit_dbt/check_source_has_freshness.py	100.00% <100.00%> (ø)
pre_commit_dbt/check_source_has_tests_by_group.py	100.00% <100.00%> (ø)
pre_commit_dbt/utils.py	100.00% <100.00%> (ø)

... and 42 files with indirect coverage changes

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[katieclaiborne]

@BAntonellini, is this improvement intended to resolve #101?

I found that pinning our pre-commit hooks to c3c3f1d resolved the issue, but didn't know if that was what you had in mind.

I did notice a seemingly transient IsADirectoryError in check-model-columns-have-desc, but wasn't sure if that was related to your changes.

Check the model columns have description.................................Failed
- hook id: check-model-columns-have-desc
- exit code: 1

Traceback (most recent call last):
  File "/home/runner/.cache/pre-commit/repoo9i55a7s/py_env-python3/bin/check-model-columns-have-desc", line 8, in <module>
    sys.exit(main())
  File "/home/runner/.cache/pre-commit/repoo9i55a7s/py_env-python3/lib/python3.10/site-packages/pre_commit_dbt/check_model_columns_have_desc.py", line 93, in main
    status_code, _ = check_column_desc(paths=args.filenames, manifest=manifest)
  File "/home/runner/.cache/pre-commit/repoo9i55a7s/py_env-python3/lib/python3.10/site-packages/pre_commit_dbt/check_model_columns_have_desc.py", line [41](https://github.com/cityblock/data-platform/actions/runs/4408977134/jobs/7724690930#step:11:42), in check_column_desc
    for item in itertools.chain(models, schemas):
  File "/home/runner/.cache/pre-commit/repoo9i55a7s/py_env-python3/lib/python3.10/site-packages/pre_commit_dbt/utils.py", line 201, in get_model_schemas
    with open(yml_file, "r") as file:
IsADirectoryError: [Errno 21] Is a directory: 'dbt/target/run/data_platform/models/staging/example/_example__models.yml'

[BAntonellini]

@katieclaiborne thanks for pointing that issue out, this PR is originally intended to solve what was proposed on PR #99

I've just committed a fix that should solve what you mentioned, as it's related with all these changes. Could you please try with 3a31b0b ?

Thank you

[katieclaiborne]

That worked! Thank you, Bruno.

Did I also see you mention that v1.1 would be released this week?

[BAntonellini]

Great to hear that!

Yes, we are working some final details, and will release 1.1