Add jdk8 tags to java_integration_test

We test some JDK8 features only and it is not worth the bucket
to separate them now.

--
MOS_MIGRATED_REVID=135234490
diff --git a/src/test/shell/integration/BUILD b/src/test/shell/integration/BUILD
index 57fd25d..8549758 100644
--- a/src/test/shell/integration/BUILD
+++ b/src/test/shell/integration/BUILD
@@ -57,6 +57,7 @@
         "//src/test/shell:shell_utils",
     ],
     shard_count = 5,
+    tags = ["jdk8"],
 )
 
 sh_test(