Pypicongpu compile test compiles with GCC9

[ikbuibui]

GCC 9 should be disabled since #5246 but while working on #5249 I ran into this error - https://gitlab.com/hzdr/crp/picongpu/-/jobs/8938122835
It looks like we still try compiling with GCC9. I had a quick look but it wasnt immediately obvious to me where this is coming from

[BrianMarre]

the CI test actually specifies gcc-11, see here.
It seems to fallback to the default gcc of the container for some reason.

We might be able to fix it by switching to the ubuntu 22.04 container.

[SimeonEhrig]

GCC 9 will be removed in general. It does not support C++20.
The new minimum GCC version is 10.

https://codebase.helmholtz.cloud/crp/alpaka-group-container/-/merge_requests/62