packaging: build `csdiff-static` on RHEL-8 and newer #344

Job	Run time
Ubuntu 22.04 (g++)	1m 43s
Ubuntu 24.04 (g++ with sanitizers)	5m 37s
Ubuntu 22.04 (clang++)	1m 53s
Ubuntu 24.04 (clang++ with sanitizers)	4m 15s
	13m 28s

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