[docs] Add CLI installation source telemetry data point

[aspire-repo-bot]

Documents changes from microsoft/aspire#20590

@DamianEdwards

Targeting release/17.0 based on the source PR milestone 17.0 (exact match on microsoft/aspire.dev).

Why

The source PR adds a new aspire.cli.install.source property to the CLI's aspire/cli/main telemetry activity, reporting how the running CLI was installed (script, winget, npm, dotnet-tool, brew, mise, nix, pr, localhive, or unknown), independent of the existing aspire.cli.identity.channel tag. This is a new, user-facing data point collected by the CLI, so the Microsoft-collected CLI telemetry reference page needs to list it.

What changed

• src/frontend/src/content/docs/reference/cli/microsoft-collected-cli-telemetry.mdx — added a new row to the existing "Data points" table for CLI version 17.0, describing the aspire.cli.install.source property, its possible values, and that no sidecar strings or paths are exported (only the matched known value), consistent with the privacy framing already used elsewhere on the page.

No new pages were created; this is a targeted update to an existing documentation page.

Generated by PR Documentation Check for #20590 · copilot · auto · 57.9 AIC · ⌖ 26.1 AIC · ⊞ 20.3K · ◷

[aspire-repo-bot]

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