fix(deps): update dependency @nomicfoundation/hardhat-ethers to v4

Author: renovate[bot]

smart-contracts/package.json

@@ -34,7 +34,7 @@
     "@matterlabs/hardhat-zksync-solc": "1.5.1",
     "@matterlabs/hardhat-zksync-verify": "1.9.0",
     "@nomicfoundation/hardhat-chai-matchers": "2.1.0",
-    "@nomicfoundation/hardhat-ethers": "3.1.0",
+    "@nomicfoundation/hardhat-ethers": "4.0.0",
     "@nomicfoundation/hardhat-ignition": "0.15.13",
     "@nomicfoundation/hardhat-ignition-ethers": "0.15.14",
     "@nomicfoundation/hardhat-network-helpers": "1.1.0",

yarn.lock

@@ -3384,16 +3384,18 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@nomicfoundation/hardhat-ethers@npm:3.1.0":
-  version: 3.1.0
-  resolution: "@nomicfoundation/hardhat-ethers@npm:3.1.0"
+"@nomicfoundation/hardhat-ethers@npm:4.0.0":
+  version: 4.0.0
+  resolution: "@nomicfoundation/hardhat-ethers@npm:4.0.0"
   dependencies:
-    debug: "npm:^4.1.1"
-    lodash.isequal: "npm:^4.5.0"
+    "@nomicfoundation/hardhat-errors": "npm:^3.0.0"
+    "@nomicfoundation/hardhat-utils": "npm:^3.0.0"
+    debug: "npm:^4.3.2"
+    ethereum-cryptography: "npm:^2.2.1"
+    ethers: "npm:^6.14.0"
   peerDependencies:
-    ethers: ^6.14.0
-    hardhat: ^2.26.0
-  checksum: 10/f5eff398b94b89d1f12b5294a9dbf261f6f0b51815abcae921e37ec76d513d988da709cc2f839fcae2f404da4c476cfdc70c92dea19417db6a81b753de4f8acf
+    hardhat: ^3.0.0
+  checksum: 10/8297575f6c2551172d73d584b3baef670b150cb27a49a4d60f32a95cfb5314ebb27cb1004893fbed38278350fd291288bf6a6fcee8e162102b7e12f9b4469b54
   languageName: node
   linkType: hard
 
@@ -4521,7 +4523,7 @@ __metadata:
     "@matterlabs/hardhat-zksync-solc": "npm:1.5.1"
     "@matterlabs/hardhat-zksync-verify": "npm:1.9.0"
     "@nomicfoundation/hardhat-chai-matchers": "npm:2.1.0"
-    "@nomicfoundation/hardhat-ethers": "npm:3.1.0"
+    "@nomicfoundation/hardhat-ethers": "npm:4.0.0"
     "@nomicfoundation/hardhat-ignition": "npm:0.15.13"
     "@nomicfoundation/hardhat-ignition-ethers": "npm:0.15.14"
     "@nomicfoundation/hardhat-network-helpers": "npm:1.1.0"