syscalls/sched_rr_get_interval: Convert to docparse #547

Job	Run time
job (debian:stable, gcc, i386)	6m 31s
job (debian:stable, ppc64el, powerpc64le-linux-gnu-gcc, 1, out, cross-compile)	4m 59s
job (debian:stable, arm64, aarch64-linux-gnu-gcc, 1, out, cross-compile)	5m 9s
job (debian:stable, s390x, s390x-linux-gnu-gcc, 1, out, cross-compile)	4m 50s
job (alpine:latest, gcc, asciidoctor)	4m 41s
job (debian:stable, gcc, out, minimal)	4m 49s
job (opensuse/archive:42.2, gcc)	5m 57s
job (quay.io/centos/centos:stream9, gcc, asciidoc-pdf, out)	5m 6s
job (debian:testing, gcc, asciidoctor-pdf)	6m 50s
job (debian:oldstable, clang)	7m 11s
job (fedora:latest, clang, 1, asciidoctor-pdf)	6m 34s
job (opensuse/leap:latest, gcc, asciidoc-pdf)	6m 26s
job (debian:oldstable, gcc, asciidoctor)	6m 26s
job (debian:testing, clang, asciidoctor-pdf)	8m 25s
job (ubuntu:jammy, gcc, asciidoctor, out)	4m 24s
job (ubuntu:bionic, gcc, asciidoc-pdf)	5m 30s
	1h 33m 48s

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