Drop support to .NET 6

[bruno-garcia]

Spicy suggestion. .NET 6 supports ends in 1 month

.NET 6 | November 8, 2021 | 6.0.35 | October 8, 2024 | LTS | Active | November 12, 2024

Since we're anyway stuck with .NET Standard 2.0 for now, we could drop support to .NET 6 when we release support for .NET 9

Folks stuck on unsupported .NET 6 would technically still be able to stay on our SDK 4.x major, or take the .NET Standard 2.0/2.1 support of the 5.x.

That wouldn't be the case for ASP.NET Core and other integrations where .NET 6 is the lowest supported version.

It's probably a safer bet to give folks a few months before dropping .NET 6, but we'd need another major though. If not now while adding .NET 9, on our SDK version 5.0, it would ironically be on 6.0.

Relates to:

• https://github.com/getsentry/sentry-dotnet/issues/3484