Latest version of io.grpc:grpc-alts
https://javadoc.io/doc/io.grpc/grpc-alts
Current version 1.21.1
https://javadoc.io/doc/io.grpc/grpc-alts/1.21.1
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/io.grpc/grpc-alts/1.21.1/package-list