Update dockerfile non-major dependencies

This PR contains the following updates:

Package	Type	Update	Change
mcr.microsoft.com/dotnet/aspnet	final	patch	`8.0.7-alpine3.20` -> `8.0.8-alpine3.20`
mcr.microsoft.com/dotnet/sdk	stage	patch	`8.0.303-alpine3.20` -> `8.0.400-alpine3.20`

Release Notes

dotnet/aspnetcore (mcr.microsoft.com/dotnet/aspnet)

### [`v8.0.8`](https://togithub.com/dotnet/aspnetcore/compare/v8.0.7...v8.0.8) [Compare Source](https://togithub.com/dotnet/aspnetcore/compare/v8.0.7...v8.0.8)

dotnet/sdk (mcr.microsoft.com/dotnet/sdk)

### [`v8.0.400`](https://togithub.com/dotnet/sdk/compare/v8.0.303...v8.0.400) [Compare Source](https://togithub.com/dotnet/sdk/compare/v8.0.303...v8.0.400)

Configuration

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Altinn / altinn-notifications

Update dockerfile non-major dependencies #590

Release Notes

Configuration

Quality Gate passed