fix(smerel): bump changelog to 8.0.0 #399

Job	Run time
discover-scenarios	3s
test (almalinux-9)	1m 53s
test (amazonlinux-2022)	1m 53s
test (archlinux)	4m 2s
test (centos-stream-9)	1m 59s
test (centos-stream-9-enterprise)	2m 6s
test (debian-11)	1m 56s
test (debian-11-enterprise)	1m 54s
test (rockylinux-9)	1m 43s
test (ubuntu-20.04)	1m 58s
test (ubuntu-22.04)	1m 50s
test (ubuntu-24.04)	2m 3s
	23m 20s

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