Sast/async json spike in memory fallback sync

[sburmanoctopus]

[sc-53133]

Background

Results

Before

After

To show that memory is capped, we used a large file and observed the following:

When Writing With a small memory limit, RAM didn't exceed 1.8GB

With a very large memory limit, all data was moved into memory, reaching 2.3GB

When Reading With a small memory limit, RAM didn't exceed 3GB

With a very large memory limit, all data was moved into memory, reaching 5.5GB

How to review this PR

Quality :heavy_check_mark:

Pre-requisites

• [ ] I have read How we use GitHub Issues for help deciding when and where it's appropriate to make an issue.
• [ ] I have considered informing or consulting the right people, according to the ownership map.
• [ ] I have considered appropriate testing for my change.

[shortcut-integration[bot]]

This pull request has been linked to Shortcut Story #53133: Halibut: Investigate JsonSerializer and Async support.