adjust snapshot script to use artifact registry #1

Job	Run time
Linux (JDK 11), Middle-Aged Guava	4m 17s
Linux (JDK 11), Newest Guava	4m 27s
Linux (JDK 11), Calcite Minimum Guava, America/New_York Timezone	2m 7s
Linux (JDK 11), Oldest Guava, Pacific/Chatham Timezone	2m 2s
Linux (JDK 17)	4m 30s
Linux (JDK 19)	3m 57s
Linux (JDK 8)	4m 16s
Linux (JDK 8), Avatica main	4m 7s
macOS (JDK 19)	11m 33s
Windows (JDK 11)	5m 14s
	46m 30s

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