fix(GHES): Remove versioning from GraphQL API endpoint URL in discussions.py

[Jalmeida1994]

Pull Request

Proposed Changes

This pull request modifies the GraphQL API endpoint URL construction in the discussions.py file. The change ensures proper handling of GitHub Enterprise Server (GHES) GraphQL API endpoints.

• Removed /v3 from the API endpoint construction as GraphQL APIs in GHES use /api/graphql instead of /api/v3/graphql
• This fixes 404 errors when attempting to access GraphQL endpoints on GHES instances

According to the GitHub Enterprise Server GraphQL documentation, the correct endpoint format is http(s)://HOSTNAME/api/graphql. Unlike REST APIs which use versioning (/api/v3), GraphQL APIs in GHES do not include version numbers in the URL path.

Readiness Checklist

Author/Contributor

• If documentation is needed for this change, has that been included in this pull request
• run make lint and fix any issues that you have introduced
• run make test and ensure you have test coverage for the lines you are introducing
• If publishing new data to the public (scorecards, security scan results, code quality results, live dashboards, etc.), please request review from @jeffrey-luszcz

Reviewer

• Label as either fix, documentation, enhancement, infrastructure, maintenance, or breaking

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