fix: remove broken and unused workflows #154

Job	Run time
lint	30s
test_postgresql (debian11)	2m 5s
test (debian, latest)	6m 15s
test_postgresql (debian12)	1m 16s
test (debian, bullseye)	6m 23s
test_postgresql (fedora38)	1m 8s
test (debian, buster)	6m 24s
test_postgresql (ubuntu2204)	1m 4s
test (enterpriselinux, 7)	6m 17s
test_postgresql (rockylinux9)	1m 5s
test (enterpriselinux, 8)	12m 39s
test (enterpriselinux, latest)	6m 33s
test (fedora, 38)	6m 21s
test (fedora, 39)	6m 26s
test (opensuse, latest)	6m 17s
test (ubuntu, latest)	6m 21s
test (ubuntu, focal)	6m 31s
	1h 23m 35s

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