Issue #3269841 by kporras07, perumalp2, Gábor Hojtsy, divya.lakshman,...

Issue #3269841 by kporras07, perumalp2, Gábor Hojtsy, divya.lakshman, scottdavisxx, malik.kotob, Chris Matthews: Failed to listen on "tcp://127.0.0.1:0": Cannot assign requested address (E ADDRNOTAVAIL)

deprecation_testing_template.neon

 # FROM mglaman/drupal-check/phpstan/deprecation_testing.neon
 parameters:
+	parallel:
+		maximumNumberOfProcesses: 0
 	customRulesetUsed: true
 	ignoreErrors:
 		- '#\Drupal calls should be avoided in classes, use dependency injection instead#'