near-sdk-sim 3.2.0 is deprecated in favor of workspaces-rs

# Problem 

near-sdk-sim 3.2.0 is deprecated in favor of workspaces-rs.

# Solution

Upgrade per NEAR [Workspaces Migration Guide](https://docs.near.org/develop/testing/workspaces-migration)

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Migrated from Asana: https://app.asana.com/0/1203912381456855/1205300974037137/f