Hardening: Add turbo task to run Tests

[brunomenezes]

📄 Context

Currently, the viem package has a set of tests for the converter, but it is not run in the CI. It can be a starting point for hardening the library by gradually adding more tests that make sense.

✔️ Solution

Add a new turbo task to run the existing set of implemented test cases. Add a GitHub action to run on push to run tests, lint & formatter checks.

📈 Subtasks

• Create a turbo task to run tests
• Create a GitHub action to run tests on push (e.g. ci.yml, build.yml)
• include step on above action to lint / format check (i.e. run biome)

🎯 Definition of Done

• New CI action runs the tests
• New CI action runs the linter and format check