openSUSE LEAP 15.3 reaches end-of-life on 2022-12-01

[Falco20019]

As there seems to not be anyone in charge to create these currently, I will create some since I'm tracking them anyway. Is it planned to be dropped for .NET Core 3.1, .NET 6.0 and .NET 7.0?

See https://en.opensuse.org/Lifetime#openSUSE_Leap for end-of-life information.

Please add os-support label.

/CC @rbhanda @richlander /awareness @mthalman @adegeo @MichaelSimons