[TF-M] GNU Arm compiler v6.3.1 deprecation heads up

Hi,

With the upcoming release of TF-M 1.2, we are considering deprecating the GNU Arm compiler v6.3.1 to be able to reallocate testing bandwidth to newer and more up to date versions ( 7+ )

Before doing so I would like to ask for the community's feedback. Is anyone using this compiler, and if so, would you be affected by the change? Are there any other reasons we should consider keeping it in to the test plan?

Regards, Minos