Upgrade project to dotnet 10

[Krusty93]

No description provided.

[Copilot]

Pull request overview

This PR upgrades the project from .NET 9.0 to .NET 10.0 by updating target frameworks and Docker base images across the solution.

Changes:

• Updated TargetFramework from net9.0 to net10.0 in all project files
• Updated Docker SDK and runtime base images from version 9.0 to 10.0

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/SafariBooksDownloader.UnitTests/SafariBooksDownloader.UnitTests.csproj	Updated test project target framework to net10.0
src/SafariBooksDownloader.Core/SafariBooksDownloader.Core.csproj	Updated core library target framework to net10.0
src/SafariBooksDownloader.App/SafariBooksDownloader.App.csproj	Updated application target framework to net10.0
Dockerfile.test	Updated test Docker image to use .NET SDK 10.0
Dockerfile	Updated build and runtime Docker images to use .NET 10.0

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (main@f4642df). Learn more about missing BASE report.

Additional details and impacted files

@@           Coverage Diff           @@
##             main       #6   +/-   ##
=======================================
  Coverage        ?   38.46%           
=======================================
  Files           ?        4           
  Lines           ?      273           
  Branches        ?       64           
=======================================
  Hits            ?      105           
  Misses          ?      165           
  Partials        ?        3           

Flag	Coverage Δ
unittests	38.46% <ø> (?)

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[Krusty93]

@copilot Update this PR by updating the README file according to the dotnet runtime upgrade