build(deps-dev): bump solady from 0.0.168 to 0.0.259 in /contracts

Bumps [solady](https://github.com/vectorized/solady) from 0.0.168 to 0.0.259.
- [Commits](Vectorized/solady@v0.0.168...v0.0.259)

---
updated-dependencies:
- dependency-name: solady
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

contracts/package.json

@@ -39,7 +39,7 @@
     "hardhat-contract-sizer": "^2.10.0",
     "hardhat-gas-reporter": "^1.0.9",
     "hardhat-tracer": "^2.7.0",
-    "solady": "^0.0.168",
+    "solady": "^0.0.259",
     "solidity-coverage": "^0.8.5",
     "typechain": "^8.3.2"
   }