Upstream update: fsharp

[github-actions]

Automation detected pending upstream changes for fsharp.

• Issue key: fsharp
• Affected skills: fsharp
• Pending upstream watches: 1

Pending upstream sources:

• fsharp-overview-docs | http_document | learn.microsoft.comdotnet/fsharp/what-is-fsharp documentation
  • Source: https://learn.microsoft.com/dotnet/fsharp/what-is-fsharp
  • Current value: "+Rp+TL3NC9EviNEX5X0OHD6SkK4="
  • Detail: What is F# - .NET | Microsoft Learn | ETag "+Rp+TL3NC9EviNEX5X0OHD6SkK4="

Why this matters:

• Review the linked skills when https://learn.microsoft.com/dotnet/fsharp/what-is-fsharp changes.

Suggested follow-up:

• Review the upstream release notes or documentation diff
• Update the affected files under skills/
• Update README.md if framework coverage or guidance changed
• Close this issue after the catalog has been refreshed