fix(json-schema): restore support for explode: true with strings

[mhassan1]

Description

This PR fixes a regression in the query string logic in the json-schema loader so that explode: true in the openapi loader works properly for type: string parameters.

Fixes #4677.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Screenshots/Sandbox (if appropriate/relevant):

N/A

How Has This Been Tested?

This PR updates explode.test.ts to include new test cases for object and string parameters.

See #4677 for reproduction steps.

Test Environment:

• OS: MacOS
• @graphql-mesh/openapi: ^0.33.26
• NodeJS: 16.17.1

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 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 and linter rules pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

Further comments

N/A

[changeset-bot]

🦋 Changeset detected

Latest commit: 7d9d414

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

This PR includes changesets to release 26 packages

Name	Type
@omnigraph/json-schema	Patch
@graphql-mesh/json-schema	Patch
@omnigraph/openapi	Patch
@omnigraph/raml	Patch
@graphql-mesh/container	Patch
auth0-example	Patch
cloudflare-workers	Patch
hasura-openbrewery-geodb	Patch
hello-world-esm	Patch
json-schema-hello-world	Patch
covid-mesh	Patch
json-schema-example	Patch
json-schema-fhir	Patch
json-schema-subscriptions	Patch
reddit-example	Patch
@graphql-mesh/openapi	Patch
@graphql-mesh/raml	Patch
nextjs-apollo-example	Patch
nextjs-sdk-example	Patch
javascript-wiki	Patch
typescript-location-weather-example	Patch
openapi-stackexchange	Patch
openapi-stripe	Patch
openapi-subscriptions	Patch
openapi-youtrack	Patch
programmatic-batching-example	Patch

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