fix: fix import issue from cross-adapter dep

[dutterbutter]

What 💻

• Bug introduced in feat: interop for ethers adapter #58 that imports from ethers adapter in viem adapter

Why ✋

• Ensures folks can install adapter without the other as a dep

Evidence 📷

Include screenshots, screen recordings, or console output here demonstrating that your changes work as intended

[github-actions]

ci-run-tests LCOV of commit 9ae2bb7 during ci-run-tests #191

Summary coverage rate:
  lines......: 83.9% (13390 of 15953 lines)
  functions..: no data found
  branches...: no data found

Files changed coverage rate:
                                                                              |Lines       |Functions  |Branches    
  Filename                                                                    |Rate     Num|Rate    Num|Rate     Num
  ==================================================================================================================
  src/adapters/viem/client.ts                                                 | 0.0%    116|    -     0|    -      0

Full coverage report