Update dockerfile non-major dependencies

This PR contains the following updates:

Package	Type	Update	Change
mcr.microsoft.com/dotnet/aspnet	final	patch	`8.0.2-alpine3.18` -> `8.0.3-alpine3.18`
mcr.microsoft.com/dotnet/sdk	stage	patch	`8.0.201-alpine3.18` -> `8.0.203-alpine3.18`

Release Notes

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

### [`v8.0.3`](https://togithub.com/dotnet/aspnetcore/releases/tag/v8.0.3): .NET 8.0.3 [Compare Source](https://togithub.com/dotnet/aspnetcore/compare/v8.0.2...v8.0.3) [Release](https://togithub.com/dotnet/core/releases/tag/v8.0.3)

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

### [`v8.0.203`](https://togithub.com/dotnet/sdk/compare/v8.0.202...v8.0.203) [Compare Source](https://togithub.com/dotnet/sdk/compare/v8.0.202...v8.0.203) ### [`v8.0.202`](https://togithub.com/dotnet/sdk/releases/tag/v8.0.202): .NET 8.0.3 [Release](https://togithub.com/dotnet/core/releases/tag/v8.0.3)

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Altinn / altinn-notifications

Update dockerfile non-major dependencies #468

Release Notes

Configuration

Quality Gate passed