Update dependencies (#1521)

vendor/google.golang.org/protobuf/internal/filedesc/build.go

@@ -3,6 +3,9 @@
 // license that can be found in the LICENSE file.
 
 // Package filedesc provides functionality for constructing descriptors.
+//
+// The types in this package implement interfaces in the protoreflect package
+// related to protobuf descripriptors.
 package filedesc
 
 import (