Description of problem:
Customer has spoofcheck option defined for VLAN interface according to https://docs.redhat.com/en/documentation/red_hat_openstack_platform/17.1/html-single/configuring_network_functions_virtualization/index#config-nic-partition_dplsriov-nfv . This configuration stopped working in RHOSP 17.1.4

OSP17.1.3 was using os-net-config-14.2.1-17.1.20230729001034.el9ost.noarch which gives only a warning message when schema is violated
OSP17.1.4 is using os-net-config-14.2.1-17.1.20240917143753.el8ost.noarch which gives an error message for the same thing and fails execution

This looks like a regression introduced via 6a03b735d4e11974082181feda61c78aba23ac27:

diff --git a/os_net_config/cli.py b/os_net_config/cli.py
index 1b40580..7b78c01 100644
— a/os_net_config/cli.py
+++ b/os_net_config/cli.py
@@ -73,7 +73,7 @@
action='store_true',
help="Exit with an error if configuration file validation fails. "
"Without this option, just log a warning and continue.",

• default=False)
  + default=True)

parser.add_argument(
'd', '-debug',

This change looks incorrect to me because "exit-on-validation-errors" action is to "store_true". If it is true by default, then this argument becomes pointless. IMO we shouldn't change default behavior in minor upgrades as well.

Version-Release number of selected component (if applicable): RHOSP 17.1.4

How reproducible: configure VLAN interface with disabled spoofchecks according to https://docs.redhat.com/en/documentation/red_hat_openstack_platform/17.1/html-single/configuring_network_functions_virtualization/index#config-nic-partition_dplsriov-nfv

Actual results: deployment fails

Expected results: warning should be printed as before