req.query will produce object instead of array when it contains more than 20 values in v4.22.X

<!-- The process for bug fixing is: - We will first assess if the behavior is different from what should occur - Confirm the bug is reproducible - Discuss how to best fix the bug - Work towards a fix --> ## Environment information **Version**: 4.22.1 / 4.22.X <!-- To find the installed version of a package, you can check the `package.json` file in the root directory of your project. The version will be listed under `dependencies` or `devDependencies`, like this: ```json "dependencies": { "express": "4.18.2" } --> **Platform**: MacOS / Linux <!-- UNIX: output of uname -a Windows: output of "$([Environment]::OSVersion.VersionString) $(('x86', 'x64')[[Environment]::Is64BitOperatingSystem])" in PowerShell console --> **Node.js version**: 24.14.1 <!-- Output of node -v. --> **Any other relevant information**: ## What steps will reproduce the bug? Consider following API query: `GET /reports/download?tenancyIds=35&tenancyIds=28&tenancyIds=149&tenancyIds=157&tenancyIds=158&tenancyIds=159&tenancyIds=161&tenancyIds=160&tenancyIds=162&tenancyIds=163&tenancyIds=164&tenancyIds=165&tenancyIds=166&tenancyIds=167&tenancyIds=7&tenancyIds=196&tenancyIds=195&tenancyIds=198&tenancyIds=70&tenancyIds=6` Prior to version 4.22.X, when calling with query regardless of numbers, `req.query.tenancyIds` will always produce as array: ``` [ '35', '28', '149', '157', '158', '159', '161', '160', '162', '163', '164', '165', '166', '167', '7', '196', '195', '198', '70', '6' ] ``` However, in version 4.22.X, when calling with query more than 20, `req.query.tenancyIds` will produce as object instead (but produce as array if it's 20 or less) ``` // 20 or less [ '35', '28', '149', '157', '158', '159', '161', '160', '162', '163', '164', '165', '166', '167', '7', '196', '195', '198', '70', '6' ] // more than 20 { '0': '35', '1': '28', '2': '149', '3': '157', '4': '158', '5': '159', '6': '161', '7': '160', '8': '162', '9': '163', '10': '164', '11': '165', '12': '166', '13': '167', '14': '7', '15': '196', '16': '195', '17': '198', '18': '70', '19': '6', '20': '75' } ```