Failed to expand bicep source '/home/runner/work/bicep-registry-modules/bicep-registry-modules/avm/res/key-vault/vault/tests/e2e/waf-aligned/main.test.bicep'. Exception calling "GetBicepResources" with "2" argument(s): "Unable to expand resources because the source file '/home/runner/work/bicep-registry-modules/bicep-registry-modules/avm/res/key-vault/vault/tests/e2e/waf-aligned/main.test.bicep' was not valid. An error occurred evaluating expression '[parameters('keySize')]' line 1798. Null object cannot be converted to a value type."