/usr/lib/python3/dist-packages/provisioningserver/templates/uefi/ is in python3-maas-provisioningserver 2.4.0~beta2-6865-gec43e47e6-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/provisioningserver/templates/uefi/config.commissioning.template
/usr/lib/python3/dist-packages/provisioningserver/templates/uefi/config.enlist.template
/usr/lib/python3/dist-packages/provisioningserver/templates/uefi/config.install.template
/usr/lib/python3/dist-packages/provisioningserver/templates/uefi/config.local.amd64.template
/usr/lib/python3/dist-packages/provisioningserver/templates/uefi/config.local.arm64.template
/usr/lib/python3/dist-packages/provisioningserver/templates/uefi/config.local.ppc64el.template
/usr/lib/python3/dist-packages/provisioningserver/templates/uefi/config.poweroff.template
/usr/lib/python3/dist-packages/provisioningserver/templates/uefi/config.xinstall.template