fix(pptx): accommodate invalid image/jpg MIME-type (#3475)
As described in #3381, some clients, perhaps including Adobe PDF
Converter, map JPEG images to the invalid `image/jpg` MIME-type. Prior
to v1.0.0, `python-pptx` would not load these images, which caused image
extraction to fail.
Update the `python-pptx` dependency to `v1.0.1` or above to ensure this
upstream fix is always available.
Fixes: #3381
