fix(Validium): Update `contracts/` submodule commit

[ilitteri]

What ❔

Updates the commit for era-contracts submodule.

Why ❔

Validium changes are in the branch

Checklist

• [x] PR title corresponds to the body of PR (we generate changelog entries from PRs).
• [ ] Tests for the changes have been added / updated.
• [ ] Documentation comments have been added / updated.
• [ ] Code has been formatted via zk fmt and zk lint.
• [ ] Spellcheck has been run via zk spellcheck.
• [ ] Linkcheck has been run via zk linkcheck.