fix(keys): fix delete schema response

[tharropoulos]

Change Summary

Add a new interface for response schemas after deletion, as the API only returns the id of the API key instead of the whole object.

❯ curl -k "http://localhost:8108/keys/15" \
-X DELETE \
-H "Content-Type: application/json" \
-H "X-TYPESENSE-API-KEY: ${TYPESENSE-API-KEY}" \
{"id":15} // Nothing other than the id of the key

This is part of a larger problem regarding the OpenAPI spec, as according to it, the 200 response schema of a API Key DELETE request is defined as:

/keys/{keyId}:
delete:
tags:
- keyssummary: Delete an API key given its ID.operationId: deleteKeyparameters:
- name: keyIdin: pathdescription: The ID of the key to deleterequired: trueschema:
type: integerformat: int64responses:
200:
description: The key referenced by the IDcontent:
application/json:
schema:
$ref: "#/components/schemas/ApiKey"

Where the ApiKey schema is defined as:

ApiKeySchema:
type: objectrequired:
- actions
- collections
- descriptionproperties:
value:
type: stringdescription:
type: stringactions:
type: arrayitems:
type: stringcollections:
type: arrayitems:
type: stringexpires_at:
type: integerformat: int64ApiKey:
allOf:
- $ref: "#/components/schemas/ApiKeySchema"
- type: objectproperties:
id:
type: integerformat: int64readOnly: truevalue_prefix:
type: stringreadOnly: true

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