Update com.googlecode.javaewah:JavaEWAH to 1.2.3

JGit updated to this version in ee2143f744.

Change-Id: I54bd6934d32c1dcecff148178a092b44dc72975f

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 3936b60..b304cfa 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -196,8 +196,8 @@
 
 maven_jar(
     name = "javaewah",
-    artifact = "com.googlecode.javaewah:JavaEWAH:1.1.12",
-    sha1 = "9feecc2b24d6bc9ff865af8d082f192238a293eb",
+    artifact = "com.googlecode.javaewah:JavaEWAH:1.2.3",
+    sha1 = "13a27c856e0c8808cee9a64032c58eee11c3adc9",
 )
 
 # When upgrading commons_compress, upgrade tukaani_xz to the