fix: fix dictionary update in remove_prefix_from_names

[0xwitty]

Description:

Change resolves an issue in the remove_prefix_from_names function where the update method was used incorrectly. The previous implementation attempted to pass a list to dict.update, which led to a mismatch with the method's expected input.

The fix replaces this with a direct assignment for clarity and correctness:

Before:

contract.update([("name", remove_prefix(contract['name'], 'openzeppelin_presets_'))])

After:

contract['name'] = remove_prefix(contract['name'], 'openzeppelin_presets_')

This makes the code not only functional but also more concise and easier to read.

PR Checklist

• Tests
• Documentation
• Added entry to CHANGELOG.md
• Tried the feature on a public network

[ericnordelo]

Duplicate of #1264, which was closed with an explanation, and was created by the same user.