[WIP] Replace all 'net9.0' references with 'net10.0' across repository (with exceptions and Copilot timeout notice)

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original description:

This PR performs a comprehensive update by replacing every instance of "net9.0" with "net10.0" across the dotnet/fsharp repository. Updates include all file content, filenames, folder names, documentation, test data, changelogs, pipeline scripts, and legacy or obsolete files.

Exceptions:

• The file /dotnet-ilverify/9.0.0/tools/net9.0/any/ILVerify.dl is not modified.
• Arrays or lists containing both 'net10.0' and 'net9.0' (e.g., ['net10.0'; 'net9.0'; ...]) are preserved as-is.

A thorough search is conducted to ensure all relevant references are covered, with accuracy and transparency.

Note:
Be aware of Copilot timeouts; make sure to yield work before time runs out.

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[T-Gro]

Pls start

[Copilot]

@T-Gro Unfortunately I hit an unexpected error while processing your comment. I've automatically reported this to GitHub.

You can ask me to try again later by mentioning me in a new comment.

If you want to contact GitHub about this error, please mention the following identifier so they can better serve you: d40619b2-b3e5-48ab-8e18-921cda1ab517

Sorry for the inconvenience!

[T-Gro]

@copilot : Please retry

[Copilot]

@T-Gro Unfortunately I hit an unexpected error while processing your comment. I've automatically reported this to GitHub.

You can ask me to try again later by mentioning me in a new comment.

If you want to contact GitHub about this error, please mention the following identifier so they can better serve you: e9cdab04-4d8f-4be6-bff7-e77dcaeaa907

Sorry for the inconvenience!