packer: add a workaround for broken podman from 9.1

Podman doesn't work when installed from 9.1 repositories on 9.0 image.

I found that upgrading the whole system helps. Sadly, that requires removing
python-unversioned-command for some reason.

Signed-off-by: Ondřej Budai <ondrej@budai.cz>

tools/appsre-build-worker-packer.sh

@@ -22,6 +22,12 @@ elif [ -n "$GIT_BRANCH" ]; then
 fi
 
 if [ "$ON_JENKINS" = false ]; then
+    # work around not working podman from 9.1 on a 9.0 image
+    # see https://bugzilla.redhat.com/show_bug.cgi?id=2143282
+    # TODO: Remove me when the bug is fixed or we switch to 9.1
+    sudo dnf remove -y python-unversioned-command
+    sudo dnf upgrade -y
+
     sudo dnf install -y podman jq
 fi