Flatpak: Update dependencies

Author: Unrud

flatpak/com.github.unrud.djpdf.yaml

@@ -434,8 +434,8 @@ modules:
       - -DCMAKE_BUILD_TYPE=RelWithDebInfo
     sources:
       - type: archive
-        url: https://github.com/qpdf/qpdf/releases/download/v12.1.0/qpdf-12.1.0.tar.gz
-        sha256: 991edd3f6158d86a8779481a02bd7d90d0ff1d52bea46abe8186295ae0bf09fa
+        url: https://github.com/qpdf/qpdf/releases/download/v12.2.0/qpdf-12.2.0.tar.gz
+        sha256: b3d1575b2218badc3549d6977524bb0f8c468c6528eebc8967bbe3078cf2cace
         x-checker-data:
           type: json
           url: https://api.github.com/repos/qpdf/qpdf/releases/latest