Updated ImageClassification dependencies

 * Added dependabot suggested changes for
   https://github.com/ARM-software/armnn/pull/657
   https://github.com/ARM-software/armnn/pull/625

Signed-off-by: Mike Kelly <mike.kelly@arm.com>
Change-Id: I60b517f949e684d8048c0bee738237746fc5e42f
diff --git a/samples/ImageClassification/requirements.txt b/samples/ImageClassification/requirements.txt
index 17b52b8..3f56a7b 100644
--- a/samples/ImageClassification/requirements.txt
+++ b/samples/ImageClassification/requirements.txt
@@ -2,6 +2,6 @@
 # Copyright © 2021 Arm Ltd and Contributors. All rights reserved.
 # SPDX-License-Identifier: MIT
 #
-numpy==1.20.2
-Pillow==8.2.0
+numpy==1.22.0
+Pillow==9.0.1
 pybind11==2.6.2