.github/workflows: Add a 6.14 kernel to the test matrix

The 6.14 kernel introduced the change that disallows attaching programs
that modify the packet pointer on top of functions that don't, so let's
add that version to the test matrix so we exercise the workaround.

Signed-off-by: Toke Høiland-Jørgensen <[email protected]>

Author: tohojo

.github/workflows/selftests.yml

@@ -12,6 +12,7 @@ jobs:
     strategy:
       matrix:
         KERNEL_VERSION:
+          - "6.14.7-200.fc41"
           - "6.13.7-200.fc41"
           - "6.12.8-200.fc41"
           - "6.10.12-200.fc40"