378 update submission processing to use polars data validator

[jcadam14]

Closes #378

Changes the filing-api in the following ways:

• When the content is uploaded, use python csv to get the row count since chunking generators in data-validator no longer provide final counts of rows in file
• Use generator from validator to get findings dataframe, and collate into final dataframe
• Updated to generate a file path that's either local or s3://, which the data-validator can use with fsspec to correctly use either way
• Calls new df_to_download to write out s3, the data validator handles the writing
• Updated build_validation_results to use the collated findings dataframe to build out the json for the frontend, ValidationResults are no longer used in the filing-api
• Updated the pytests
• Updated boto3 to stick to version 1.34 since fsspec and s3fs (which is used in the data-validator) don't currently support botocore 1.35. When the data-validator is separated, we can switch back to the latest boto3

[github-actions]

Coverage report

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File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
src/sbl_filing_api/routers
filing.py
src/sbl_filing_api/services
submission_processor.py					64
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