Bump baseline-browser-mapping from 2.9.8 to 2.11.21 in /DigitalLearningSolutions.Web - #3757

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, actions/setup-node@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Converting null literal or possible null value to non-nullable type.

Converting null literal or possible null value to non-nullable type.

Possible null reference argument for parameter 'url' in 'Task<Ticket> FreshdeskHttpClient.ApiOperationAsync<Ticket, CreateTicketRequest>(HttpMethod method, string url, CreateTicketRequest? body, CancellationToken cancellationToken)'.

Converting null literal or possible null value to non-nullable type.

Possible null reference argument for parameter 'apiKey' in 'FreshdeskHttpClient FreshdeskHttpClient.Create(string freshdeskDomain, string apiKey)'.

Possible null reference argument for parameter 'freshdeskDomain' in 'FreshdeskHttpClient FreshdeskHttpClient.Create(string freshdeskDomain, string apiKey)'.

Converting null literal or possible null value to non-nullable type.

Converting null literal or possible null value to non-nullable type.

'Exception.Exception(SerializationInfo, StreamingContext)' is obsolete: 'This API supports obsolete formatter-based serialization. It should not be called or extended by application code.' (https://aka.ms/dotnet-warnings/SYSLIB0051)