LSC: Refactor Protobuf Message.toString calls that blocks[]

[]

Background:
Protobuf Message.toString() currently serializes all the fields in a proto into a human-readable representation, which has led to many privacy incidents where Message.toString() outputs containing sensitive fields (e.g. private keys) were accidentally logged. To prevent such privacy incidents, while minimizing reliability risks, we (orrery-debug-string@) are in the process of changing Protobuf Message.toString()’s output format in stages:[]
PiperOrigin-RevId: 759759246
Change-Id: I4f36ad4fc23a4b805ab270d028f93eacbf0bf389

Author: Googler

src/java_tools/import_deps_checker/javatests/com/google/devtools/build/importdeps/BUILD

@@ -329,5 +329,8 @@ sh_test(
 java_binary(
     name = "DumpProto",
     srcs = ["DumpProto.java"],
-    deps = ["//src/main/protobuf:deps_java_proto"],
+    deps = [
+        "//src/main/protobuf:deps_java_proto",
+        "@com_google_protobuf//:protobuf_java",
+    ],
 )

src/java_tools/import_deps_checker/javatests/com/google/devtools/build/importdeps/DumpProto.java

@@ -15,6 +15,7 @@
 package com.google.devtools.build.importdeps;
 
 import com.google.devtools.build.lib.view.proto.Deps.Dependencies;
+import com.google.protobuf.TextFormat;
 import java.io.BufferedInputStream;
 import java.nio.file.Files;
 import java.nio.file.Paths;
@@ -24,7 +25,7 @@ public class DumpProto {
   public static void main(String[] args) throws Exception {
     try (BufferedInputStream bis =
         new BufferedInputStream(Files.newInputStream(Paths.get(args[0])))) {
-      System.out.print(Dependencies.parseFrom(bis));
+      System.out.print(TextFormat.printer().printToString(Dependencies.parseFrom(bis)));
     }
   }
 }