Exception reading one JSON file shouldn't prevent all JSON files from being processed.

[macdonst]

Expected Behaviour

Only invalid JSON files should not be processed.

Actual Behaviour

The first invalid JSON file found prevents all others from being processed

Reproduce Scenario (including but not limited to)

Steps to Reproduce

• Add an empty file like sample.json in your content repo.
• Run gatsby develop

Platform and Version

Current main branch.

Sample Code that illustrates the problem

Logs taken while reproducing problem

SyntaxError: Unexpected end of JSON input
    at JSON.parse (<anonymous>)
    at /apps/jenkins/2.235.2/workspace/storage-api-HaZqYDZi/gatsby-node.js:108:29
    at Array.forEach (<anonymous>)
    at readManifest (/apps/jenkins/2.235.2/workspace/storage-api-HaZqYDZi/gatsby-node.js:106:26)
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
    at async Object.exports.createPages (/apps/jenkins/2.235.2/workspace/storage-api-HaZqYDZi/gatsby-node.js:200:17)
    at async runAPI (/apps/jenkins/2.235.2/workspace/storage-api-HaZqYDZi/node_modules/gatsby/dist/utils/api-runner-node.js:302:16)
Could not read the manifest
Skipping JSON files
SyntaxError: Unexpected end of JSON input
    at JSON.parse (<anonymous>)
    at /apps/jenkins/2.235.2/workspace/storage-api-HaZqYDZi/gatsby-node.js:275:29
    at Array.forEach (<anonymous>)
    at Object.exports.createPages (/apps/jenkins/2.235.2/workspace/storage-api-HaZqYDZi/gatsby-node.js:273:30)
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
    at async runAPI (/apps/jenkins/2.235.2/workspace/storage-api-HaZqYDZi/node_modules/gatsby/dist/utils/api-runner-node.js:302:16)
error "gatsby-node.js" threw an error while running the createPages lifecycle: