feat(openadapt.privacy.providers): add private_ai as a scrubbing provider

[KrishPatel13]

What kind of change does this PR introduce?
Add PrivateAI as Scrubbing Provider.

Summary
Motivation: #418 (comment)

Checklist

• My code follows the style guidelines of OpenAdapt
• I have performed a self-review of my code
• If applicable, I have added tests to prove my fix is functional/effective
• I have linted my code locally prior to submission
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (e.g. README.md, requirements.txt)
• New and existing unit tests pass locally with my changes

How can your code be run and tested?

Other information

[KrishPatel13]

Now, add tests for text, pdf and image scrubbing using private ai

[KrishPatel13]

Now, if there is some issue with PRIVATE_AI_API_KEY (not valid or not present) then all then tests in test_private_ai_scrub.py get skipped.

See how it will look:

(openadapt-py3.10) PS P:\OpenAdapt AI - MLDS AI\cloned_repo\my_forked\OpenAdapt> pytest .\tests\openadapt\privacy\providers\test_private_ai_scrub.py
=============================================================================================== test session starts ================================================================================================
platform win32 -- Python 3.10.11, pytest-7.1.3, pluggy-1.3.0
rootdir: P:\OpenAdapt AI - MLDS AI\cloned_repo\my_forked\OpenAdapt, configfile: pyproject.toml
plugins: anyio-3.7.1
collected 15 items

tests\openadapt\privacy\providers\test_private_ai_scrub.py sssssssssssssss                                                                                                                                    [100%]

=============================================================================================== 15 skipped in 0.44s ================================================================================================ 
(openadapt-py3.10) PS P:\OpenAdapt AI - MLDS AI\cloned_repo\my_forked\OpenAdapt> 

[KrishPatel13]

@abrichr Addressed all of your comments!

Ready for merging

[KrishPatel13]

Once this is merged, please see: #418 (comment), #330 (comment)

[KrishPatel13]

@abrichr I have addressed your comments again, to use BytesIO wherever possible.

Here is how pytest looks like after all:

(openadapt-py3.10) PS P:\OpenAdapt AI - MLDS AI\cloned_repo\my_forked\OpenAdapt> pytest
==================================================== test session starts =====================================================
platform win32 -- Python 3.10.11, pytest-7.1.3, pluggy-1.3.0
rootdir: P:\OpenAdapt AI - MLDS AI\cloned_repo\my_forked\OpenAdapt, configfile: pyproject.toml
plugins: anyio-3.7.1
collected 60 items

tests\openadapt\test_crop.py .                                                                                          [  1%]
tests\openadapt\test_events.py .......                                                                                  [ 13%]
tests\openadapt\test_summary.py ..                                                                                      [ 16%]
tests\openadapt\privacy\test_providers.py .                                                                             [ 18%]
tests\openadapt\privacy\providers\test_comprehend_scrub.py ...............                                              [ 43%]
tests\openadapt\privacy\providers\test_presidio_scrub.py .................                                                                      [ 71%]
tests\openadapt\privacy\providers\test_private_ai_scrub.py .................                                                                    [100%]

================================================================== warnings summary ==================================================================
tests/openadapt/privacy/providers/test_presidio_scrub.py::test_scrub_image
  C:\Users\Krish Patel\AppData\Local\pypoetry\Cache\virtualenvs\openadapt-vs6jmx3S-py3.10\lib\site-packages\pytesseract\pytesseract.py:382: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
    return LooseVersion(

tests/openadapt/privacy/providers/test_presidio_scrub.py::test_scrub_image
  C:\Users\Krish Patel\AppData\Local\pypoetry\Cache\virtualenvs\openadapt-vs6jmx3S-py3.10\lib\site-packages\setuptools\_distutils\version.py:345: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
    other = LooseVersion(other)

tests/openadapt/privacy/providers/test_private_ai_scrub.py::test_image_redaction
tests/openadapt/privacy/providers/test_private_ai_scrub.py::test_image_redaction
tests/openadapt/privacy/providers/test_private_ai_scrub.py::test_image_redaction
tests/openadapt/privacy/providers/test_private_ai_scrub.py::test_image_redaction
  C:\Users\Krish Patel\AppData\Local\pypoetry\Cache\virtualenvs\openadapt-vs6jmx3S-py3.10\lib\site-packages\easyocr\utils.py:576: DeprecationWarning: ANTIALIAS is deprecated and will be removed in Pillow 10 (2023-07-01). Use LANCZOS or Resampling.LANCZOS instead.
    img = cv2.resize(img,(int(model_height*ratio),model_height),interpolation=Image.ANTIALIAS)

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
===================================================== 60 passed, 6 warnings in 280.52s (0:04:40) ===================================================== 
(openadapt-py3.10) PS P:\OpenAdapt AI - MLDS AI\cloned_repo\my_forked\OpenAdapt> 

Ready for merging!

[abrichr]

LGTM!