Fixes the integration test

During the integration test, we're cloning the SRIOV Network Device
Plugin repository in order to deploy it.

However, it currently fails in the CI because we're cloning it in the
test instance, rather than cloning it locally. This results in
FileNotFoundErrors because the files we're trying to read to not exist
locally.

This updates the integration test to clone the git repository locally,
rather than in the test instance.

tests/integration/test_sriov_net_device_plugin.py

@@ -4,16 +4,15 @@
 
 import logging
 from pathlib import Path
+import subprocess
 
 from k8s_test_harness import harness
 from k8s_test_harness.util import env_util, k8s_util
 
 LOG = logging.getLogger(__name__)
 
 
-def _clone_git_repo(location: Path, repo: str, branch: str, instance: harness.Instance):
-    location.mkdir()
-
+def _clone_git_repo(location: Path, repo: str, branch: str):
     clone_command = [
         "git",
         "clone",
@@ -25,7 +24,7 @@ def _clone_git_repo(location: Path, repo: str, branch: str, instance: harness.In
         str(location.absolute()),
     ]
 
-    instance.exec(clone_command)
+    subprocess.run(clone_command, check=True)
 
 
 def _deploy_sriov_ndp(temp_path: Path, instance: harness.Instance):
@@ -35,7 +34,7 @@ def _deploy_sriov_ndp(temp_path: Path, instance: harness.Instance):
 
     clone_path = temp_path / "sriov-ndp"
     repo = "https://github.com/k8snetworkplumbingwg/sriov-network-device-plugin"
-    _clone_git_repo(clone_path, repo, "v3.6.2", instance)
+    _clone_git_repo(clone_path, repo, "v3.6.2")
     deployments_path = clone_path / "deployments"
 
     # Create a NetworkAttachmentDefinition and a deployment requiring it.