[Housekeeping] Use single configuration option for maximum blobstore size

[hamersaw]

Describe the issue

Currently there are multiple configuration values for the maximum size for a blobstore file between I/O writing, dynamic closure offloading, etc.

What if we do not do this?

Users frequently run into issues with increasing the maximum size with unclear instructions on what values need to change.

Related component(s)

No response

Are you sure this issue hasn't been raised already?

• Yes

Have you read the Code of Conduct?

• Yes

[dosubot]

🤖

It seems like you've got this under control, if you want help or have specific questions, let me know what I can do for you!