Update flatbuffer version and fix json2numpy test

Temporarily disable the json to numpy pytest

Otherwise will load as the wrong dtype
Also update the flatbuffer module version to match
tosa_mlir_translator

Change-Id: I40999f631adb1b230bc8a8b891e0955dd67371f0
Signed-off-by: Eric Kunze <eric.kunze@arm.com>
diff --git a/setup.cfg b/setup.cfg
index a9dc3ab..6cd1489 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,7 +20,7 @@
 [options]
 install_requires =
     numpy
-    flatbuffers == 2.0
+    flatbuffers == 23.5.26
 python_requires = >=3.6
 include_package_data = True
 packages =