kernel-test.yml: set memory and num_cpus for run-vmtest call

See also libbpf/ci#203

Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>

Author: theihor

.github/workflows/kernel-test.yml

@@ -76,6 +76,8 @@ jobs:
           KERNEL_TEST: ${{ inputs.test }}
           SELFTESTS_BPF: ${{ github.workspace }}/selftests/bpf
           VMTEST_CONFIGS: ${{ github.workspace }}/ci/vmtest/configs
+          VMTEST_MEMORY: 4G
+          VMTEST_NUM_CPUS: 4
           TEST_PROGS_TRAFFIC_MONITOR: ${{ inputs.arch == 'x86_64' && 'true' || '' }}
           TEST_PROGS_WATCHDOG_TIMEOUT: 600
         with: