SPIGOT-4980: Shields will not be put on cooldown when hit with an axe

nms-patches/EntityLiving.patch

@@ -670,7 +670,7 @@
 +                Entity entity = damagesource.j();
 +
 +                if (entity instanceof EntityLiving) {
-+                    this.c((EntityLiving) entity);
++                    this.d((EntityLiving) entity);
 +                }
 +            }