update buildroot and decide version rule

[ski7777]

No description provided.

[hypnotoad]

I tried the 2023.02 buildroot in https://github.com/ftCommunity/ftcommunity-TXT/compare/br-2023?expand=1, but it does not compile due to some compile problem (afaik it was that QT SIP was updated and does not compile properly).

[ski7777]

still we need to decide about version rule
Every main release? Only LTS?
Bugfixes?

[hypnotoad]

2023.02 is actually lts. My own proposal would be to use the most recent lts which works oit of the box.

[ski7777]

the we should use it with all available bugfixes

[hypnotoad]

I will give 2023.02.3 a try. That would allow tflite https://pypi.org/project/tflite-runtime/2.13.0/ whic requires some numpy which we don't have yet:
https://git.busybox.net/buildroot/plain/CHANGES?id=2023.02.3

[hypnotoad]

I fixed the python-sip bug in buildroot/buildroot#131