fixes to null settings - #1087

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@v4.0.1, github/codeql-action/analyze@v3, github/codeql-action/autobuild@v3, github/codeql-action/init@v3. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Dereference of a possibly null reference.

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

Possible null reference argument for parameter 'uriString' in 'Uri.Uri(string uriString)'.

The using directive for 'Azure.Identity' appeared previously in this namespace

Assertion arguments should be passed in the correct order. 'actual' and 'expected'/'notExpected' arguments have been swapped. (https://learn.microsoft.com/dotnet/core/testing/mstest-analyzers/mstest0017)

Assertion arguments should be passed in the correct order. 'actual' and 'expected'/'notExpected' arguments have been swapped. (https://learn.microsoft.com/dotnet/core/testing/mstest-analyzers/mstest0017)

Assertion arguments should be passed in the correct order. 'actual' and 'expected'/'notExpected' arguments have been swapped. (https://learn.microsoft.com/dotnet/core/testing/mstest-analyzers/mstest0017)

Assertion arguments should be passed in the correct order. 'actual' and 'expected'/'notExpected' arguments have been swapped. (https://learn.microsoft.com/dotnet/core/testing/mstest-analyzers/mstest0017)

Assertion arguments should be passed in the correct order. 'actual' and 'expected'/'notExpected' arguments have been swapped. (https://learn.microsoft.com/dotnet/core/testing/mstest-analyzers/mstest0017)

The using directive for 'Azure.Core' appeared previously in this namespace

Cannot build an overlay database because build-mode is set to "undefined" instead of "none". Falling back to creating a normal full database instead.

CodeQL Action v3 will be deprecated in December 2026. Please update all occurrences of the CodeQL Action in your workflow files to v4. For more information, see https://github.blog/changelog/2025-10-28-upcoming-deprecation-of-codeql-action-v3/