Improve script confirmer handling and definition parser support; enhance error diagnostics and clean generated parser sources - #34

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/upload-artifact@v4, gittools/actions/gitversion/execute@v3.0.0, gittools/actions/gitversion/setup@v3.0.0, microsoft/setup-msbuild@v2, NuGet/setup-nuget@v2, seanmiddleditch/gha-setup-vsdevenv@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/