Encountered an issue that "%" character appears at the end of the file content

### Before opening, please confirm:

- [X] I have checked to see if my question is addressed in the [FAQ](https://github.com/aws-amplify/amplify-hosting/blob/master/FAQ.md).
- [X] I have [searched for duplicate or closed issues](https://github.com/aws-amplify/amplify-hosting/issues?q=is%3Aissue+).
- [X] I have removed any sensitive information from my code snippets and submission.

### Amplify Hosting feature

Access logs, Build settings, Frontend builds

### Is your feature request related to a problem? Please describe:

I am hosting a React application on AWS Amplify, and I am experiencing an issue where a % character appears at the end of the file content. I can confirm that this character is not present in the original file we uploaded to our AWS Amplify project. This file is critical for Apple Pay domain verification.

### Describe how you'd like this feature to work

Could you please assist in identifying and resolving this issue?

Begin with the Amplify Hosting frontend-build and deployment path and the served file used for Apple Pay domain verification; no source file or test is named in the report. Reproduce the upload, fetch the deployed file, and compare its bytes with the original; done means the deployed content exactly matches the uploaded file without a trailing "%".

Written by the indexing model from the issue text.