Bump xstream from LATEST to 1.4.19 in /bigtop-bigpetstore/bigpetstore-mapreduce#28

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dependabot/maven/bigtop-bigpetstore/bigpetstore-mapreduce/com.thoughtworks.xstream-xstream-1.4.19fuslab/anyscale-package:dependabot/maven/bigtop-bigpetstore/bigpetstore-mapreduce/com.thoughtworks.xstream-xstream-1.4.19Copy head branch name to clipboard