scripts: Remove wrong bz package

Package in the requirements-run-test.txt file, bz,
is not package enabling bz2 support.
It is a security concern and must be removed.

Signed-off-by: Lukasz Mrugala <lukaszx.mrugala@intel.com>

Author: LukaszMrugala

scripts/requirements-run-test.txt

@@ -15,8 +15,5 @@ cbor>=1.0.0
 # use for twister
 psutil
 
-# Artifacts package creation
-bz
-
 # used for CAN <=> host testing
 python-can>=4.3.0