Update many-count GraphQL API

[timleslie]

This change mirrors the changes made to the top level meta queries.

[changeset-bot]

🦋 Changeset detected

Latest commit: 807c5f6

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

This PR includes changesets to release 22 packages

Name	Type
@keystone-next/fields	Major
@keystone-next/app-basic	Patch
@keystone-next/example-blog	Patch
@keystone-next/example-ecommerce	Patch
keystone-next-app	Patch
@keystone-next/example-json-field	Patch
@keystone-next/example-roles	Patch
@keystone-next/example-sandbox	Patch
@keystone-next/example-todo	Patch
@keystone-next/example-with-auth	Patch
@keystone-next/keystone	Minor
@keystone-next/website	Patch
@keystone-next/example-auth	Patch
@keystone-next/example-embedded-nextjs	Patch
@keystone-next/types	Patch
@keystone-next/api-tests-legacy	Patch
@keystone-next/adapter-prisma-legacy	Patch
@keystone-next/benchmarks-legacy	Patch
@keystone-next/auth	Major
@keystone-next/cloudinary	Patch
@keystone-next/fields-document	Patch
@keystone-next/test-utils-legacy	Patch

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Sandbox	Source
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