Add JimFS to third_party

Change-Id: I9d16ab783e4d91f7a515103c4b6191c169f73570

third_party/BUILD

diff --git a/third_party/BUILD b/third_party/BUILD
index 034789d..f501aa0 100644
--- a/third_party/BUILD
+++ b/third_party/BUILD
@@ -389,7 +389,7 @@
 
 java_import(
     name = "jimfs",
-    jars = ["jimfs/jimfs-1.1-rc1.jar"],
+    jars = ["jimfs/jimfs-1.1.jar"],
 )
 
 java_import(