kernel-test: enable traffic monitoring on x86_64

See libbpf/ci PRs:
* libbpf/ci#168
* libbpf/ci#172
* libbpf/ci#174

Signed-off-by: Ihor Solodrai <[email protected]>

Author: theihor

.github/workflows/kernel-test.yml

@@ -76,6 +76,7 @@ jobs:
           KERNEL_TEST: ${{ inputs.test }}
           SELFTESTS_BPF: ${{ github.workspace }}/selftests/bpf
           VMTEST_CONFIGS: ${{ github.workspace }}/ci/vmtest/configs
+          TEST_PROGS_TRAFFIC_MONITOR: ${{ inputs.arch == 'x86_64' && 'true' || '' }}
           TEST_PROGS_WATCHDOG_TIMEOUT: 600
         with:
           arch: ${{ inputs.arch }}
@@ -86,3 +87,10 @@ jobs:
           # Here we must use kbuild-output local to the repo, because
           # it was extracted from the artifacts.
           kbuild-output: ${{ env.REPO_ROOT }}/kbuild-output
+
+      - if: ${{ always() }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: tmon-logs-${{ inputs.arch }}-${{ inputs.toolchain_full }}-${{ inputs.test }}
+          if-no-files-found: ignore
+          path: /tmp/tmon_pcap/*