Renovate: update label used to flag Search updates

[jeherve]

Proposed changes:

We now prefix our feature labels with [Feature].

Other information:

• Have you written new tests for your changes, if applicable?
• Have you checked the E2E test CI results, and verified that your changes do not break them?
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Jetpack product discussion

• N/A

Does this pull request change what data or activity we track or use?

• No

Testing instructions:

• Not much to test here. This will impact future PRs like this one: Update Instant Search Dependency Updates #38133

[github-actions]

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[anomiex]

Also this team doesn't seem to exist anymore. I asked at #38133 (comment) whether we should remove this whole config block (lines 94–109) and let these be handled like any other updates instead of being grouped as "Instant Search".

[jeherve]

I updated it to Red in 49bf9eb, following #38133 (comment)

[anomiex]

LGTM if Team Red is fine with it.

@kangzj: What this will do is have Renovate add Team Red as the requested reviewer when it creates a PR like #38133.

[kangzj]

Hi @anomiex prompt reviews might not be guaranteed but I'm fine with that. Thanks for asking!