chore: allow phpstan v1

[phil-davis]

"uri" repo is working running phpstan 1.11 on PHP 8.4 So I am hoping that I could find some config that will allow old phpstan 0.12 to keep running with PHP 7.1, and phpstan 1.11 to run with PHP 8.4 But phpstan 1.11 with PHP 8.4 is giving: "Result is incomplete because of severe errors" "Some parallel worker jobs have not finished. while running parallel worker" But the deprecated messages that are logged are similar to what "uri" logs. There must be difference in something!