Use mimetreeparser from gpg4win/24.05 branch

* packages/gen-tarball.sh (mimetreeparser): Use gpg4win branch.
Add url to summit l10n.
* packages/packages.common: Update the package.

While this is currently the same as kf5 better change
it as the branch already exists and it might be
forgotten to switch the branch in Gpg4win if
changes are backported.