*/*: Bump PORTREVISION for known Qt private API abusers

Qt 6.9.1 edition.

These ports are known to directly use or link to a library that uses the
Qt private API and must be rebuilt with every Qt update.

Qt *public* API/ABI compatability is excellent, so most consumers don't
need to necessarily be rebuilt between patch or even minor releases, but
use of the private API breaks this compatibility between even patch
releases and its use is highly discouraged.

This list of bumps is based on histortical data. We don't have time to
revisit every port on the list with each Qt update, so if your port has
dropped Qt private headers and was bumped in error, please let kde@ know
so we can correct this for future updates.