Update tesserocr filepath to URL in requirements

[dudewheresmycode]

Update tesserocr library requirement from local file path to remote URL.

Note: GitHub wasn't showing the diff in the code review (I think because it's a txt / binary file). So I've included the diff here:

- tesserocr @ file:///C:\Users\etienne\Downloads\tesserocr-2.7.1-cp312-cp312-win_amd64.whl#sha256=89beecd1f8143360d61f1ae29b64139d881a79cc06a61b5ab5455eff5ab4419f
+ tesserocr @ https://github.com/simonflueckiger/tesserocr-windows_build/releases/download/tesserocr-v2.7.1-tesseract-5.4.1/tesserocr-2.7.1-cp312-cp312-win_amd64.whl