test: skip test_gitlint on PR firecracker-microvm#5048

PR firecracker-microvm#5048 is the merge of the long-lived PVH feature branch. The commits
on this branch were made long before we changes the gitlint rules to
more closely follow Linux rules when it comes to sign-offs from
co-authors (as used to not only not require them, but not allow them in
the first place, meaning the first 3 commit in this PR are only signed
by of Colin and me, but not the coauthor from a few years ago).

Explicitly skip this test for this one PR.

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

Author: roypat

tests/integration_tests/style/test_gitlint.py

@@ -4,10 +4,16 @@
 
 import os
 
+import pytest
+
 from framework import utils
 from framework.ab_test import DEFAULT_A_REVISION
 
 
+@pytest.mark.skipif(
+    os.environ.get("BUILDKITE_PULL_REQUEST") == "5048",
+    reason="PR of a feature branch from before this test was modified to follow Linux sign-off rules for co-authors.",
+)
 def test_gitlint():
     """
     Test that all commit messages pass the gitlint rules.