v2.46.0

Changed:

• WorkspaceValidator: an OcrdFile without a pageId is not an error, but a document-wide file, #485, #979
• WorkspaceBackupManager: add snapshot on init if enabled, #981
• 🔥 end-of-life for python 3.6, test from 3.7 to 3.11, #956
• 🔥 update base image to Ubuntu 20.04, #956

Fixed:

• bashlib: Handle empty list of input files, #978
• OcrdMets.find_files: don't override the @LOCTYPE of file candidates, #980
• ocrd resmgr: replace libmagic with simple lookup by suffix, #982, #984

Added:

• helpers: get_cached_processor to get instances of a processor in preparation for #974, #972