[BUG] Use proper path for qmlcachegen6

[davidjharder]

Description

With the update to QT6.11, qmlcachegen6 is moved/renamed.
PR for a symlink as the temp. fix until ypkg uses the correct path getsolus/packages#8947

[davidjharder]

Harvey says

Just remove %qml6_cache and be done with it.
Reilly said it does nothing an I have been removing it from everything I touch, when i remember.

[EbonJaeger]

That works, too. When we remove it here, we'll have to make sure to also remove it from the Help Center package.yml page, assuming it's actually listed there.