Add validation when setting linger option

[josesimoes]

Description

• Add content lenght validation.

Motivation and Context

• Unlike what habpens in full .NET, this validation was missing. Now added.
• Surfaced by existing unit test.

How Has This Been Tested?

• Running unit tests locally.

Screenshots

Types of changes

• Improvement (non-breaking change that improves a feature, code or algorithm)
• Bug fix (non-breaking change which fixes an issue with code or algorithm)
• New feature (non-breaking change which adds functionality to code)
• Breaking change (fix or feature that would cause existing functionality to change)
• Config and build (change in the configuration and build system, has no impact on code or features)
• Dependencies (update dependencies and changes associated, has no impact on code or features)
• Unit Tests (add new Unit Test(s) or improved existing one(s), has no impact on code or features)
• Documentation (changes or updates in the documentation, has no impact on code or features)

Checklist:

• My code follows the code style of this project (only if there are changes in source code).
• My changes require an update to the documentation (there are changes that require the docs website to be updated).
• I have updated the documentation accordingly (the changes require an update on the docs in this repo).
• I have read the CONTRIBUTING document.
• I have tested everything locally and all new and existing tests passed (only if there are changes in source code).
• I have added new tests to cover my changes.

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Review details

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Run ID: 13ac0c50-f131-4003-a2b9-d3da25fb563a

📥 Commits

Reviewing files that changed from the base of the PR and between 25d2755 and 40fc97b.

📒 Files selected for processing (1)

• nanoFramework.System.Net/Sockets/Socket.cs

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[nfbot]

⚠️ Native declaration update required!

The checksum and/or native version of nanoFramework.System.Net have changed. The native declaration in nf-interpreter must be updated before this package can be released.

	Previously published	This build
Native version	100.2.0.12	100.2.0.14
Checksum	0x6DFA71D6	0x8EFB9944

👉 Tracking issue: https://github.com/nanoframework/Home/issues/1818

The issue contains a link to the stubs artifact from this build and instructions for GitHub Copilot to perform the update.