carto/protobuf @ a8ab1fade9bf69d7fa630c0f7568e0e3b51df0e4

Adam Cozzette a8ab1fade9 Update protobuf version		4 lat temu
..
src	de371235c9 Sync from Piper @338284531	5 lat temu
BUILD	6bbd56dfd9 Bazel: Discontinue JDK 7 compatibility support	5 lat temu
generate-sources-build.xml	49efe9d7db Restructuring protobuf to multiple modules	9 lat temu
generate-test-sources-build.xml	cb390216cf Fixed the Java build.	5 lat temu
pom.xml	a8ab1fade9 Update protobuf version	4 lat temu