Support pidfd_open syscall #3218

Job	Run time
build-libs-linux-amd64 😁 (system_deps)	7m 12s
build-libs-linux-amd64 😁 (bundled_deps)	24m 34s
build-libs-linux-amd64 😁 (system_deps_w_chisels)	9m 32s
build-libs-linux-amd64 😁 (system_deps_minimal)	4m 35s
build-libs-linux-amd64-asan 🧐	11m 32s
build-libs-others-amd64 😨 (windows-latest)	6m 57s
build-libs-others-amd64 😨 (macos-latest)	5m 44s
build-shared-libs-linux-amd64 🧐	3m 54s
paths-filter	5s
run-e2e-tests-amd64 (system_deps)	11m 19s
run-e2e-tests-amd64 (bundled_deps)	29m 9s
run-e2e-tests-amd64 (system_deps_w_chisels)	14m 38s
run-e2e-tests-amd64 (asan)	39m 32s
test-drivers-x86 😇 (bundled_deps)	13m 0s
build-libs-s390x 😁 (system_deps)	1h 27m 30s
test-scap-x86 😆 (bundled_deps)	4m 54s
	4h 34m 7s

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