tests/functional/test_aarch64_sbsaref_freebsd: Fix the URL of the ISO image

The original image has been removed from the server, so the test
currently fails if it has to fetch the asset, but we can still
download the ISO from the archive server. While we're at it, prefer
the XZ compressed image, it's much smaller and thus the download
should be faster.

Message-ID: <20250701105809.366180-1-thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

tests/functional/test_aarch64_sbsaref_freebsd.py

@@ -18,9 +18,9 @@ from test_aarch64_sbsaref import fetch_firmware
 class Aarch64SbsarefFreeBSD(QemuSystemTest):
 
     ASSET_FREEBSD_ISO = Asset(
-        ('https://download.freebsd.org/releases/arm64/aarch64/ISO-IMAGES/'
-         '14.1/FreeBSD-14.1-RELEASE-arm64-aarch64-bootonly.iso'),
-        '44cdbae275ef1bb6dab1d5fbb59473d4f741e1c8ea8a80fd9e906b531d6ad461')
+        ('http://ftp-archive.freebsd.org/pub/FreeBSD-Archive/old-releases/arm64'
+         '/aarch64/ISO-IMAGES/14.1/FreeBSD-14.1-RELEASE-arm64-aarch64-bootonly.iso.xz'),
+        '7313a4495ffd71ab77b49b1e83f571521c32756e1d75bf48bd890e0ab0f75827')
 
     # This tests the whole boot chain from EFI to Userspace
     # We only boot a whole OS for the current top level CPU and GIC
@@ -29,7 +29,7 @@ class Aarch64SbsarefFreeBSD(QemuSystemTest):
         self.set_machine('sbsa-ref')
 
         fetch_firmware(self)
-        img_path = self.ASSET_FREEBSD_ISO.fetch()
+        img_path = self.uncompress(self.ASSET_FREEBSD_ISO)
 
         self.vm.set_console()
         self.vm.add_args(