Try building timezones on GH #9

Job	Run time
build-valhalla / build_unix (macos-latest)	20m 25s
build-valhalla / build_unix (macos-13)	34m 7s
build-valhalla / build_unix (ubuntu-22.04)	26m 23s
build-valhalla / build_unix (windows-2019)	50m 29s
call-workflow / create_tag	1s
call-workflow / josm-build	8m 28s
call-workflow (r19067) / create_tag	1s
call-workflow (r19067) / josm-build	7m 6s
call-workflow (r19067) / plugin-build	7m 25s
call-workflow / plugin-build	5m 56s
call-workflow / plugin-test	0s
call-workflow / release	0s
call-workflow (r19067) / plugin-test	1s
call-workflow (r19067) / release	1s
build-valhalla / combine_macos	1m 17s
build-valhalla / generate_timezones_admins	4s
upload-valhalla	0s
	2h 41m 44s

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