Fix CI and nits

package.json

@@ -80,7 +80,6 @@
     "hardhat-gas-reporter": "^1.0.9",
     "hardhat-ignore-warnings": "^0.2.0",
     "lodash.startcase": "^4.4.0",
-    "lodash.zip": "^4.2.0",
     "micromatch": "^4.0.2",
     "p-limit": "^3.1.0",
     "prettier": "^3.0.0",

test/utils/structs/Checkpoints.test.js

@@ -4,6 +4,8 @@ const { loadFixture } = require('@nomicfoundation/hardhat-network-helpers');
 
 const { VALUE_SIZES } = require('../../../scripts/generate/templates/Checkpoints.opts.js');
 
+const last = array => (array.length ? array[array.length - 1] : undefined);
+
 describe('Checkpoints', function () {
   for (const length of VALUE_SIZES) {
     describe(`Trace${length}`, function () {
@@ -113,7 +115,7 @@ describe('Checkpoints', function () {
 
         it('upper lookup & upperLookupRecent', async function () {
           for (let i = 0; i < 14; ++i) {
-            const value = this.checkpoints.findLast(x => i >= x.key)?.value || 0n;
+            const value = last(this.checkpoints.filter(x => i >= x.key))?.value || 0n;
 
             expect(await this.methods.upperLookup(i)).to.equal(value);
             expect(await this.methods.upperLookupRecent(i)).to.equal(value);
@@ -135,7 +137,7 @@ describe('Checkpoints', function () {
           }
 
           for (let i = 0; i < 25; ++i) {
-            const value = allCheckpoints.findLast(x => i >= x.key)?.value || 0n;
+            const value = last(allCheckpoints.filter(x => i >= x.key))?.value || 0n;
             expect(await this.methods.upperLookup(i)).to.equal(value);
             expect(await this.methods.upperLookupRecent(i)).to.equal(value);
           }

test/utils/structs/DoubleEndedQueue.test.js

@@ -19,10 +19,11 @@ async function fixture() {
 }
 
 describe('DoubleEndedQueue', function () {
-  const bytesA = ethers.AbiCoder.defaultAbiCoder().encode(['uint256'], [0xdeadbeef]);
-  const bytesB = ethers.AbiCoder.defaultAbiCoder().encode(['uint256'], [0x0123456789]);
-  const bytesC = ethers.AbiCoder.defaultAbiCoder().encode(['uint256'], [0x42424242]);
-  const bytesD = ethers.AbiCoder.defaultAbiCoder().encode(['uint256'], [0x171717]);
+  const coder = ethers.AbiCoder.defaultAbiCoder();
+  const bytesA = coder.encode(['uint256'], [0xdeadbeef]);
+  const bytesB = coder.encode(['uint256'], [0x0123456789]);
+  const bytesC = coder.encode(['uint256'], [0x42424242]);
+  const bytesD = coder.encode(['uint256'], [0x171717]);
 
   beforeEach(async function () {
     Object.assign(this, await loadFixture(fixture));