feat(response-cache): added getScope callback in buildResponseCacheKey

[k-i-k-s]

Issue related : #2181

Description

Include a getScope callback in buildResponseCacheKey to enable an Apollo like behavior, where PUBLIC scopes have only one cache key to get better performances on larger scales.

Type of change

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How Has This Been Tested?

I added some unit tests to check that PRIVATE scope is correctly retrieved from a query, when directive @cacheControl(scope: PRIVATE) is put on query, field and subfield.

Checklist:

• I have followed the
  CONTRIBUTING doc and the
  style guidelines of this project
• I have performed a self-review of my own code
• I have commented on my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[changeset-bot]

🦋 Changeset detected

Latest commit: 9e8ea70

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

This PR includes changesets to release 2 packages

Name	Type
@envelop/response-cache	Minor
@envelop/response-cache-cloudflare-kv	Major

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