Enable nullable reference type warnings - #207

Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/checkout@v3, actions/setup-dotnet@v3, actions/upload-artifact@v4, danielpalme/ReportGenerator-GitHub-Action@4.6.1. Actions will be forced to run with Node.js 24 by default starting June 16th, 2026. Node.js 20 will be removed from the runner on September 16th, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Unexpected input(s) 'title', valid inputs are ['reports', 'targetdir', 'reporttypes', 'sourcedirs', 'historydir', 'plugins', 'assemblyfilters', 'classfilters', 'filefilters', 'verbosity', 'tag']

'BleModuleConnection.Start(string, int)' is obsolete: 'The port thread sleep parameter has no effect anymore and this constructor will be removed in future releases'

Type 'short' is incompatible with type 'SharpBrick.PoweredUp.MarioGestures' and cast attempts will throw InvalidCastException at runtime (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2021)

'BleModuleConnection.Start(string, int)' is obsolete: 'The port thread sleep parameter has no effect anymore and this constructor will be removed in future releases'

Type 'short' is incompatible with type 'SharpBrick.PoweredUp.MarioGestures' and cast attempts will throw InvalidCastException at runtime (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2021)