chore(deps): update dependency jint to v4

Author: renovate[bot]

Rnwood.Smtp4dev/Rnwood.Smtp4dev.csproj

@@ -32,7 +32,7 @@
     <PackageReference Include="DeepEqual" Version="5.1.0" />
     <PackageReference Include="DotNet.Glob" Version="3.1.3" />
     <PackageReference Include="HtmlAgilityPack" Version="1.12.0" />
-    <PackageReference Include="Jint" Version="3.0.1" />
+    <PackageReference Include="Jint" Version="4.2.2" />
     <PackageReference Include="Linq.Expression.Optimizer" Version="1.0.28" />
     <PackageReference Include="LinqKit" Version="1.3.8" />
     <PackageReference Include="MailKit" Version="4.11.0" />