{Branch Management} Fix merge-base: Merge release 2.90.0 fixes back to dev

{Branch Management} Fix merge-base: Merge release 2.90.0 fixes back to dev

Author: naga-nandyala

scripts/release/rpm/test_rpm_in_docker.sh

@@ -4,7 +4,8 @@
 set -exv
 
 export USERNAME=azureuser
-
+# Pinned UBI 8/9 images contain an older Expat incompatible with current Python 3.12 pyexpat.
+dnf update -y expat
 dnf --nogpgcheck install /mnt/rpm/$RPM_NAME -y
 
 dnf install git findutils $PYTHON_PACKAGE-pip -y