ZTS: Skip send_raw_ashift on FreeBSD

On FreeBSD 14 this test runs slowly in the CI environment
and is killed by the 10 minute timeout.  Skip the test on
FreeBSD until the slow down is resolved.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #14961

tests/test-runner/bin/zts-report.py.in

@@ -173,6 +173,7 @@ if sys.platform.startswith('freebsd'):
         'link_count/link_count_001': ['SKIP', na_reason],
         'casenorm/mixed_create_failure': ['FAIL', 13215],
         'mmap/mmap_sync_001_pos': ['SKIP', na_reason],
+        'rsend/send_raw_ashift': ['SKIP', 14961],
     })
 elif sys.platform.startswith('linux'):
     known.update({