v3.3.0

• Added a new conflict mode deduplicate which skips duplicate files and renames
  non-duplicates (thanks @TheExistingOne).
• The exif filter now supports extracting metadata from non-image files such as EPUB
  or PDF files.
• Loosen the pdfminer-six dependency version constraint for easier NixOS packaging.
• Fixes encoding issues in windows (thanks @Alimektor).