Update JGit

Repository#getAllRefsByPeeledObjectId now throws IOException so we
have to propagate it.  No other changes required.

Reported-by: Alina Djamankulova <[email protected]>
Change-Id: I172ec48fe2d54a1ffcfcc74a775eac5e11bc7650
diff --git a/WORKSPACE b/WORKSPACE
index 6404298..b8aa911 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -177,15 +177,9 @@
 )
 
 maven_jar(
-    name = "hamcrest-library",
-    artifact = "org.hamcrest:hamcrest-library:1.3",
-    sha1 = "4785a3c21320980282f9f33d0d1264a69040538f",
-)
-
-maven_jar(
-    name = "hamcrest-core",
-    artifact = "org.hamcrest:hamcrest-core:1.3",
-    sha1 = "42a25dc3219429f0e5d060061f71acb49bf010a0",
+    name = "hamcrest",
+    artifact = "org.hamcrest:hamcrest:2.2",
+    sha1 = "1820c0968dba3a11a1b30669bb1f01978a91dedc",
 )
 
 maven_jar(