Update dependency eslint to v9 (#4996)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Hadrien Croubois <hadrien.croubois@gmail.com>
Co-authored-by: cairo <cairoeth@protonmail.com>

test/helpers/storage.js

@@ -26,7 +26,7 @@ const upgradeableSlot = (contractName, offset) => {
     // Try to get the artifact paths, will throw if it doesn't exist
     artifacts._getArtifactPathSync(`${contractName}Upgradeable`);
     return offset + ethers.toBigInt(erc7201Slot(erc7201format(contractName)));
-  } catch (_) {
+  } catch {
     return offset;
   }
 };