Clairmeta

Fix
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* Certificate validity date validation now performed against document Issue Date instead of present time (https://www.isdcf.com/certs-expiring/)
* Informative check matching the old behaviour added for older playback systems (`check_certif_date_expired`)

Changes
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* Remove Python 3.7 support (untested)
* Improve `check_dcp_signed` error message

Fix
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* Profile `bypass` key to ignore specific checks

Internal
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* Add Ruff Linter workflow
* Format the code with Black
* Use poetry for dependencies management

Changes
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* Specify allowed foreign files from DCP check profile now support regular expressions robin-francois
* Add DCP folder name analysis to probe result (`path_naming_convention` key) robin-francois

Fix
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* Error when parsing CPL Reels with empty MarkerList elements

Features
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* Specify allowed foreign files from DCP check profile, robin-francois

Fix
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* XML unicode decoding error on Windows

Features
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* Digital certificate end of validity date check (warning)

Fix
---

* Incompatibility with latest libexpat releases, thanks to hartwork