chore: new teth logo (#351)

### Description

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Summary of change.
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### Backward compatibility

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Are these changes backward compatible? Note that additions are backwards
compatible.

Yes/No
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### Testing

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Have any new metadata configs and deployment addresses been used with
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.changeset/new-jars-return.md

@@ -0,0 +1,5 @@
+---
+'@hyperlane-xyz/registry': patch
+---
+
+Update teth synthetic logo