Docker(deps): Bump dotnet/sdk from 8.0.402 to 8.0.403 in /Izzy-Moonbot

Bumps dotnet/sdk from 8.0.402 to 8.0.403.

---
updated-dependencies:
- dependency-name: dotnet/sdk
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Izzy-Moonbot/Dockerfile

@@ -3,7 +3,7 @@
 FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
 WORKDIR /app
 
-FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:8.0.402 AS build
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:8.0.403 AS build
 WORKDIR /src
 COPY ["Izzy-Moonbot/Izzy-Moonbot.csproj", "Izzy-Moonbot/"]
 RUN dotnet restore "Izzy-Moonbot/Izzy-Moonbot.csproj"