Resolve Java 25 ftbfs

Vladimir Petkorequested to merge
vpa1977/libyanfs-java:master into master

This MR resolves 1108584.

Changes:

  • add patch to use public API to get content type, try to guess icon file name (there is no longer API to do it).
  • Update Standards Version

Testing:

  • rebuild in sid chroot
  • rebuild in sid chroot with Java 25 default.

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