test: Make test_mmds use correct target version

It has to take snapshots at "snapshot version", not the firecracker
version (so 1.3.0 instead of 1.3.1) to pass. Additionally, download the
files with the correct permissions (this was preventing the test from
passing locally for me)

Signed-off-by: Patrick Roy <[email protected]>

Author: roypat

tests/integration_tests/functional/test_mmds.py

@@ -703,11 +703,11 @@ def test_mmds_snapshot(bin_cloner_path, version):
     for firecracker in firecracker_artifacts:
         iface_cfg = NetIfaceConfig()
         vm_instance = vm_builder.build_vm_nano(net_ifaces=[iface_cfg])
-        firecracker.download()
+        firecracker.download(perms=0o555)
         jailer = firecracker.jailer()
-        jailer.download()
+        jailer.download(perms=0o555)
 
-        target_version = firecracker.base_name()[1:]
+        target_version = firecracker.snapshot_version
         # If the version is smaller or equal to 1.0.0, we expect that
         # MMDS will be initialised with V1 by default.
         if compare_versions(target_version, "1.0.0") <= 0: