[CDF-25497] 🐛 Avoid reusing sessions in transformations (#1830)

# Description

The user is experiencing error like these:
<img width="1154" height="479" alt="image"
src="https://github.com/user-attachments/assets/d99cd567-f53a-43f6-82c9-b5ba7662462b"
/>
I think this is because of the caching of the session, thus removing
that.

## Changelog

- [x] Patch
- [ ] Minor
- [ ] Skip

## cdf

### Fixed

- When deploying transformations with credentials, Toolkit no longer
reuses the session for the same credentials. This should remove the
`Failed to bind nonce with session...` errors.

## templates

No changes.
