poppler: update to 25.06.0

[slymattz]

Testing the changes

• I tested the changes in this PR: YES|briefly|NO

[ci skip] mostly because of libreoffice being too hard on resources for CI

Local build testing

In general, I tested local builds for x86_64-{glibc,musl}

• [x] calligra x86_64-glibc, x86_64-musl @Johnnynator
• [x] fim x86_64-glibc, x86_64-musl @leahneukirchen
• [x] inkscape x86_64-glibc, x86_64-musl: importing pdfs works @atk
• [x] ipe x86_64-glibc, x86_64-musl
• [x] kitinerary x86_64-glibc, x86_64-musl @DBLouis (required a kpkpass update)
• [x] libreoffice x86_64-glibc, x86_64-musl @sgn: opening pdfs in libreoffice-draw works as expected
• [x] pdf2djvu x86_64-glibc, x86_64-musl @spaskalev
• [x] poppler x86_64-glibc, x86_64-musl
• [x] poppler-qt5 x86_64-glibc, x86_64-musl
• [x] scribus x86_64-glibc, x86_64-musl: opening pdfs works @Gottox