Update FileCheck to use the version in llvm-16

llvm-16 is the default version for debian testing and rodete

Change-Id: I776b97d833b55d7388bf2b7f8dee8fe490394fe3

install-prereqs.sh

diff --git a/install-prereqs.sh b/install-prereqs.sh
index 6b694dd..5103e52 100755
--- a/install-prereqs.sh
+++ b/install-prereqs.sh
@@ -43,7 +43,7 @@
     libcunit1-dev
     libc6-dev
     libtool
-    llvm-13-tools
+    llvm-16-tools
     gcc
     g++
     gcc-11