Migrate analytics to brew.sh proxy

[SMillerDev]

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This migrates the analytics reporting to our own proxy so we have more control over it. Also makes it easier to find out for people what the traffic is. Since our proxy automatically sets a write-only token we will not need to set one anymore here.

[MikeMcQuaid]

Thanks! Can you confirm you've run this locally with export HOMEBREW_ANALYTICS_DEBUG=1 and it produces identical output (bar the URL) to the previous approach?

[Copilot]

Pull request overview

This PR migrates Homebrew’s analytics reporting endpoint to the analytics.brew.sh proxy and removes the previously hard-coded InfluxDB token from the client-side implementation.

Changes:

• Switch Utils::Analytics::INFLUX_HOST to https://analytics.brew.sh.
• Remove the Authorization: Token ... header from analytics write requests.
• Update formula-analytics spec expectations for the new host value.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
Library/Homebrew/utils/analytics.rb	Updates the Influx host to the brew.sh proxy and removes the Authorization token header from write requests.
Library/Homebrew/test/dev-cmd/formula-analytics_spec.rb	Adjusts expected query request host to match the new INFLUX_HOST value.

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[SMillerDev]

Can you confirm you've run this locally with export HOMEBREW_ANALYTICS_DEBUG=1 and it produces identical output (bar the URL) to the previous approach?

I've checked both the normal write flow and brew formula-analytics. Both still seem to be working as before. And the request output differs only in header, commit and URL.

[MikeMcQuaid]

Thanks!