CI/CD

Bump external/ubpf from `2c163d6` to `4464bc3` #1816

Job	Run time
codeql	0s
regular / build (Debug)	9m 15s
regular_native-only / build (NativeOnlyDebug)	9m 21s
regular / build (FuzzerDebug)	11m 12s
analyze / build (Debug)	11m 10s
regular_native-only / build (NativeOnlyRelease)	12m 33s
regular / build (Release)	9m 40s
analyze / build (Release)	11m 1s
sanitize / build (Debug)	16m 26s
sanitize / build (Release)	15m 44s
driver_native_only_ws2019	0s
driver_native_only_ws2022	0s
unit_tests_native_only / run_test (NativeOnlyDebug)	6m 53s
unit_tests_native_only / run_test (NativeOnlyRelease)	6m 24s
bpf2c	0s
bpf2c_conformance	0s
driver_ws2019	0s
netebpf_ext_unit_tests	0s
unit_tests_appverif	0s
unit_tests	0s
bpf2c_fuzzer	0s
bpf2c_fuzzer_scheduled	0s
driver_ws2022	0s
ossar	0s
core_helper_fuzzer	0s
fault_injection	0s
netebpfext_fuzzer	0s
execution_context_fuzzer	0s
verifier_fuzzer	0s
verifier_fuzzer_scheduled	0s
cilium_tests	0s
fault_injection_full	0s
netebpfext_fault_injection_full	0s
fault_injection_netebpfext_unit	0s
quick_user_mode_multi_threaded_stress_test	0s
stress	0s
user_mode_multi_threaded_stress_test	0s
km_mt_stress_tests	0s
km_mt_stress_tests_restart_extension	0s
performance	0s
upload_perf_results	0s
unit_tests_native_only / create_or_update_issue	0s
sanitize_unit_tests	0s
	1h 59m 39s

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