fix: missing snip-12 enum type dependency

[xJonathanLEI]

Motivation and Resolution

Resolves #1287.

Checklist:

• Performed a self-review of the code
• Rebased to the last commit of the target branch (or merged it into my branch)
• Linked the issues which this PR resolves
• Documented the changes in code (API docs will be generated automatically)
• Updated the tests
• All tests are passing

[penovicp]

Could you add a test message example similar to __mocks__/typedData/example_enum.json and corresponding tests for encodeType, getTypeHash, and getMessageHash so the issue that the PR fixes is covered in case of future code changes?

[xJonathanLEI]

Sure thing. Sorry I should have added the tests to start with. I will generate the tests using my impl in starknet-rs.