Build: Do not cache snapshots
Build: Do not cache snapshots

Gradle marks dependencies with a version containing "SNAPSHOT" as
"changing", and caches them for 24 hours by default. This updates the
configuration to not cache them at all.

Original commit: elastic/x-pack-elasticsearch@ac95e30a96b5dc666c42c700b754219d335700ef

coding0011/elasticsearch,gfyoung/elasticsearch,strapdata/elassandra,nknize/elasticsearch,coding0011/elasticsearch,HonzaKral/elasticsearch,GlenRSmith/elasticsearch,nknize/elasticsearch,robin13/elasticsearch,strapdata/elassandra,robin13/elasticsearch,HonzaKral/elasticsearch,vroyer/elassandra,robin13/elasticsearch,gingerwizard/elasticsearch,scorpionvicky/elasticsearch,nknize/elasticsearch,nknize/elasticsearch,scorpionvicky/elasticsearch,gingerwizard/elasticsearch,gfyoung/elasticsearch,HonzaKral/elasticsearch,robin13/elasticsearch,uschindler/elasticsearch,scorpionvicky/elasticsearch,nknize/elasticsearch,gingerwizard/elasticsearch,coding0011/elasticsearch,gfyoung/elasticsearch,scorpionvicky/elasticsearch,strapdata/elassandra,uschindler/elasticsearch,gingerwizard/elasticsearch,vroyer/elassandra,scorpionvicky/elasticsearch,gingerwizard/elasticsearch,robin13/elasticsearch,GlenRSmith/elasticsearch,gfyoung/elasticsearch,vroyer/elassandra,strapdata/elassandra,uschindler/elasticsearch,GlenRSmith/elasticsearch,HonzaKral/elasticsearch,uschindler/elasticsearch,GlenRSmith/elasticsearch,coding0011/elasticsearch,strapdata/elassandra,gingerwizard/elasticsearch,uschindler/elasticsearch,gfyoung/elasticsearch,GlenRSmith/elasticsearch,coding0011/elasticsearch,gingerwizard/elasticsearch