Use Newtonsoft.Json for Release deserialization and fix formatting

Co-authored-by: Malcolmnixon <1863707+Malcolmnixon@users.noreply.github.com>

Author: Copilot

src/DemaConsulting.BuildMark/DemaConsulting.BuildMark.csproj

@@ -56,6 +56,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
     <PackageReference Include="Octokit" Version="14.0.0" />
     <PackageReference Include="SonarAnalyzer.CSharp" Version="10.19.0.132793">
       <PrivateAssets>all</PrivateAssets>

src/DemaConsulting.BuildMark/RepoConnectors/GitHubRepoConnector.cs

@@ -592,7 +592,7 @@ private static async Task<IReadOnlyList<Release>> GetAllReleasesAsync(
         return releaseTagNames.Select(tagName =>
         {
             var json = $$"""{"tag_name":"{{tagName}}"}""";
-            return System.Text.Json.JsonSerializer.Deserialize<Release>(json) ?? throw new InvalidOperationException($"Failed to create Release object for tag {tagName}");
+            return Newtonsoft.Json.JsonConvert.DeserializeObject<Release>(json) ?? throw new InvalidOperationException($"Failed to create Release object for tag {tagName}");
         }).ToList();
     }
 

test/DemaConsulting.BuildMark.Tests/RepoConnectors/GitHub/GitHubGraphQLClientTests.cs

@@ -353,7 +353,7 @@ protected override async Task<HttpResponseMessage> SendAsync(
             var requestBody = request.Content != null
                 ? await request.Content.ReadAsStringAsync(cancellationToken)
                 : string.Empty;
-            
+
             string responseContent;
             if (_requestCount == 0 || !requestBody.Contains("\"after\""))
             {
@@ -704,7 +704,7 @@ protected override async Task<HttpResponseMessage> SendAsync(
             var requestBody = request.Content != null
                 ? await request.Content.ReadAsStringAsync(cancellationToken)
                 : string.Empty;
-            
+
             string responseContent;
             if (_requestCount == 0 || !requestBody.Contains("\"after\""))
             {
@@ -1045,7 +1045,7 @@ protected override async Task<HttpResponseMessage> SendAsync(
             var requestBody = request.Content != null
                 ? await request.Content.ReadAsStringAsync(cancellationToken)
                 : string.Empty;
-            
+
             string responseContent;
             if (_requestCount == 0 || !requestBody.Contains("\"after\""))
             {