chore: add @deprecated notice to variableMatcher

[acemir]

variableMatcher was removed from Mocklink.MockedResponse on Apollo Client 4.0

[apollo-cla]

@acemir: Thank you for submitting a pull request! Before we can merge it, you'll need to sign the Apollo Contributor License Agreement here: https://contribute.apollographql.com/

[changeset-bot]

🦋 Changeset detected

Latest commit: 15729b2

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@apollo/client	Patch

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[jerelmiller]

Hey @acemir 👋

Appreciate the PR! We'll need to do a bit of work to allow the version-3.x branch to be releasable (we originally planned for 3.14.0 to be the last 3.x change). This change looks ok otherwise! Please be patient with us for a little bit until we can get that in place.

[pkg-pr-new]

npm i https://pkg.pr.new/@apollo/client@12970

commit: 15729b2

[jerelmiller]

One suggestion for the deprecation message for accuracy. Let's also get a changeset in here so we can get this in a patch release (otherwise this will just sit in that branch)