jammy-amd64-tf-m-build: Add pyelftools dependency

Add pyelftools python package to requirements_python3

Change-Id: I81f0746116eb3e4fe9d32e884e46668f85e3e0ea
Signed-off-by: Raef Coles <raef.coles@arm.com>
diff --git a/jammy-amd64-tf-m-build/requirements_python3.txt b/jammy-amd64-tf-m-build/requirements_python3.txt
index 6b98317..58e1657 100755
--- a/jammy-amd64-tf-m-build/requirements_python3.txt
+++ b/jammy-amd64-tf-m-build/requirements_python3.txt
@@ -20,3 +20,4 @@
 networkx==2.5.1
 tuxsuite==1.38.2
 libclang~=18.1.1
+pyelftools~=0.30