Build Ruby 3.0 for old distributions #206

Job	Run time
Publish gcc-13	6m 22s
Publish gcc-12	7m 25s
Publish gcc-11	4m 2s
Publish gcc-10	4m 5s
Publish gcc-9	4m 11s
Publish gcc-8	4m 32s
Publish gcc-7	4m 25s
Publish clang-18	39s
Publish clang-17	1m 48s
Publish clang-16	2m 14s
Publish clang-15	2m 12s
Publish clang-14	2m 6s
Publish clang-13	2m 29s
Publish clang-12	4m 13s
Publish clang-11	4m 44s
Publish clang-10	4m 21s
Publish clang-9	4m 30s
Publish clang-8	4m 42s
Publish clang-7	4m 5s
Publish clang-6.0	5m 9s
Publish mingw-w64	6m 5s
Publish crossbuild-essential-arm64	3m 59s
Publish crossbuild-essential-ppc64el	4m 26s
Publish crossbuild-essential-s390x	4m 51s
	1h 37m 35s

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