Consider fail_on_hook_fail: true for this integration

[rfay]

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• DDEV restart raise an error with Symfony migrations. ddev#4409

@flovntp pointed out a situation where the symfony-build fails, but the hooks continue on.

I think it would be reasonable to turn on fail_on_hook_fail: true for this integration, so later things don't show up from earlier failures.

I know there are a couple of places where the fails are inconsequential, but this is a situation where things should definitely stop and the failure should be pointed out where it actually is.