CI: Update FreeBSD versions and ci-type handling

Update FreeBSD versions:
- add FreeBSD 15.0-STABLE
- add FreeBSD 16.0-CURRENT

So we use the latest versions of each line now:
  - Freebsd 14.3 (RELEASE)
  - FreeBSD 15.0 (STABLE)
  - FreeBSD 16.0 (CURRENT)

In commits - you may specify which type of CI should run:
- ZFS-CI-Type: quick
- ZFS-CI-Type: linux
- ZFS-CI-Type: freebsd
- ZFS-CI-Type: full

Reviewed-by: Alexx Saver <lzsaver@users.noreply.github.com>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tino Reichardt <milky-zfs@mcmilk.de>
Closes #17896

.github/workflows/zfs-qemu-packages.yml

@@ -52,7 +52,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ['almalinux8', 'almalinux9', 'almalinux10', 'fedora41', 'fedora42']
+        os: ['almalinux8', 'almalinux9', 'almalinux10', 'fedora41', 'fedora42', 'fedora43']
     runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v4