poppler: Update to version 24.08.0

poppler: Update to version 24.08.0

- Update from version 24.03.0 to 24.08.0
- Update of rootfile
- sobump has dependency of cups-filters
- Changelog
    24.08.0
        core:
         * Add support for modifying the appearance stream text in form field choice
         * Fix buffer overflow in Windows specific font selection code
         * Fix crashes in malformed files
         * Internal code improvements
        qt5:
         * Add support for modifying the appearance stream text in form field choice
        qt6:
         * Add support for modifying the appearance stream text in form field choice
        utils:
         * pdfinfo: Fix crash in malformed documents
    24.07.0
        core:
         * Fix crashes in broken files
         * Internal code improvements
        qt6:
         * Add getters for document additional actions
         * Implement reset forms link
        qt5:
         * Add getters for document additional actions
         * Implement reset forms link
        utils:
         * pdfinfo: Fix crash in broken documents when using -dests
        build system:
         * Mark glib-mkenums as required
    24.06.0
        core:
         * Performance improvements in some files
         * Fix some issues with files bigger than 2^31 bytes
         * Remove all cairo include guards for cairo < 1.16
         * Fix MSVC build
         * Internal code improvements
        qt6:
         * Update Qt6 doc example
         * Use the non deprecated version of QString::fromUcs4
        glib:
         * properly document return value from poppler_font_info_scan
    24.05.0
        core:
         * Fix signing not being totally correct in some kind of PDF files
         * Assume "Adobe-Identity" for character collection. Issue #1465
         * Small improvements in annotation font rendering
         * Remove some GooString methods, use std::string ones instead
         * Move some GooString methods to UTF.h
         * Fix crash in broken files
        cpp:
         * cpp: Fix crash extracting text and font in some files. Issue #1477
         * Change base class of ustring to char16_t
        qt6:
         * Add async API for certificate validation
         * Fix text extraction for Landscape/Seascape pages
        qt5:
         * Add async API for certificate validation
         * Fix text extraction for Landscape/Seascape pages
        utils:
         * pdfdetach: Small code improvements
         * pdftops: Write compliant ps header
        build system:
         * Increase minimum supported base to that provided by Ubuntu 22.04
    24.04.0
        core:
         * Optimize page text extraction speed
         * Fix clipping path handling in some files. Issue #739
         * Fix regression in text selection
         * Fix text search across lines between paragraphs
        qt6:
         * Fix crash in SoundObject::data
        utils:
         * pdfsig: Add Catalan translation
        build system:
         * Build code as C++20

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>