Add v1.5 daily scheduled build, adjust v1.4 to weekly #351

Job	Run time
Build extension binaries / Generate matrix	40s
Build extension binaries / linux_arm64	16m 23s
Build extension binaries / linux_amd64	21m 54s
Build extension binaries / matrix.duckdb_arch	0s
Build extension binaries / matrix.duckdb_arch	0s
Build extension binaries / matrix.duckdb_arch	0s
	38m 57s

Provide feedback