Simplify and update `verify-templating.yml` #542

Job	Run time
Generate Jobs	41s
1.23.4-bookworm	31s
1.23.4-bullseye	42s
1.23.4-alpine3.21	29s
1.23.4-alpine3.20	28s
1.23.4-windowsservercore-ltsc2022, 1.23.4-nanoserver-ltsc2022	5m 8s
1.23.4-windowsservercore-1809, 1.23.4-nanoserver-1809	7m 19s
1.22.10-bookworm	34s
1.22.10-bullseye	39s
1.22.10-alpine3.21	31s
1.22.10-alpine3.20	29s
1.22.10-windowsservercore-ltsc2022, 1.22.10-nanoserver-ltsc2022	7m 33s
1.22.10-windowsservercore-1809, 1.22.10-nanoserver-1809	7m 11s
	32m 15s

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