Tests are failing due to octokit.js missing fetch implementation

[lelia]

Description

Ref: https://github.com/octokit/octokit.js/?tab=readme-ov-file#fetch-missing

Expected Behaviour

Tests pass now that the build has been fixed (see #279)

Actual Behaviour

Build passes but tests fail with:

Received an error code: undefined fetch is not set. Please pass a fetch implementation as new Octokit({ request: { fetch }}). Learn more at https://github.com/octokit/octokit.js/#fetch-missing

[github-actions]

Automatically marking issue as stale due to lack of activity

[github-actions]

Automatically closing this issue as stale