Fallback to debian image if ubuntu20 image not found

Change-Id: Iaf556b22961b8c04f260e529df8d3ef8c88b24c7
Reviewed-on: https://review.couchbase.org/c/build-tools/+/194344
Tested-by: Michael Blow <[email protected]>
Reviewed-by: Michael Blow <[email protected]>

Author: mblow

release/analytics-jars/release-analytics-jars.sh

@@ -6,7 +6,8 @@ BLD_NUM=$3
 
 # Download named build (use Ubuntu 20 - will need to update in far future
 # when we no longer support Ubuntu 20)
-curl -L http://latestbuilds.service.couchbase.com/builds/latestbuilds/couchbase-server/${RELEASE}/${BLD_NUM}/couchbase-server-enterprise_${VERSION}-${BLD_NUM}-ubuntu20.04_amd64.deb -o couchbase-server.deb
+curl -L http://latestbuilds.service.couchbase.com/builds/latestbuilds/couchbase-server/${RELEASE}/${BLD_NUM}/couchbase-server-enterprise_${VERSION}-${BLD_NUM}-ubuntu20.04_amd64.deb -o couchbase-server.deb ||
+  curl -L http://latestbuilds.service.couchbase.com/builds/latestbuilds/couchbase-server/${RELEASE}/${BLD_NUM}/couchbase-server-enterprise_${VERSION}-${BLD_NUM}-debian10_amd64.deb -o couchbase-server.deb
 
 # Extract jar contents
 ar x couchbase-server.deb