Bump Roslynator.Analyzers from 4.15.0 to 4.16.0 - #115

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4, gittools/actions/gitversion/execute@v3.1.1, gittools/actions/gitversion/setup@v3.1.1. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/