testing.litevm: skip up to 4 kernels w/o debuginfo

We've seen tests fail due to debuginfo being missing from
oss.oracle.com. This is an ongoing issue and rather than have it block
our tests, we need to add a bit more flexibility.

This is still only activated when the github label is applied to the PR,
so in most cases, up-to-date debuginfo is still required. This just
unblocks pull request review and merge.

Orabug: 38625030

Signed-off-by: Stephen Brennan <[email protected]>

Author: brenns10

testing/litevm/rpm.py

@@ -211,7 +211,10 @@ def key(t):
         )
         rows.sort(key=key, reverse=True)
         versions_tried = []
-        for ver, rel, href in rows[:2]:
+        # We will try a maximum of the 5 most recent kernel to see whether
+        # debuginfo is available. This adds a bit of wiggle room in case of
+        # situations where debuginfo is not up-to-date online.
+        for ver, rel, href in rows[:5]:
             # Check whether all RPMs are either cached or available via HTTP
             rpm_urls: List[str] = []
             rpm_url = yumbase + href