fix(smart-contracts): rollback @oz/upgrades-core to 1.33.1

[clemsos]

Description

The new version of OZ upgrades checks for internal function in storage layout. The OZ upgradeable contracts package currently has an issue that leads the test suite to crash. Instead of this disabling OZ checks with unsafe-allow, we rollback to a previous version until a fix is released

Issues

Fixes #
Refs #

Checklist:

• 1 PR, 1 purpose: my Pull Request applies to a single purpose
• I have commented my code, particularly in hard-to-understand areas
• I have updated the docs to reflect my changes if applicable
• I have added tests (and stories for frontend components) that prove my fix is effective or that my feature works
• I have performed a self-review of my own code
• If my code involves visual changes, I am adding applicable screenshots to this thread

Release Note Draft Snippet