.Net: Locked Moq package version (#2377)

### Motivation and Context

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Temporary locked `Moq` package version based on recent privacy issues:
https://github.com/moq/moq/issues/1372

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [x] The code builds clean without any errors or warnings
- [x] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [x] All unit tests pass, and I have added new tests where possible
- [x] I didn't break anyone 😄

.github/dependabot.yml

@@ -18,11 +18,12 @@ updates:
       - dependency-name: "Microsoft.Extensions.*"
         update-types: ["version-update:semver-major"]
       - dependency-name: "Microsoft.Bcl.*"
-        update-types: ["version-update:semver-major"]      
+        update-types: ["version-update:semver-major"]
+      - dependency-name: "Moq"
     labels:
       - ".NET"
       - "dependencies"
-      
+
   # Maintain dependencies for nuget
   - package-ecosystem: "nuget"
     directory: "samples/dotnet"
@@ -36,7 +37,7 @@ updates:
     schedule:
       interval: "weekly"
       day: "monday"
-      
+
   # Maintain dependencies for pip
   - package-ecosystem: "pip"
     directory: "python/"
@@ -46,7 +47,7 @@ updates:
     labels:
       - "python"
       - "dependencies"
-      
+
   # Maintain dependencies for github-actions
   - package-ecosystem: "github-actions"
     # Workflow files stored in the

dotnet/Directory.Packages.props

@@ -30,7 +30,7 @@
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="6.0.1" />
     <!-- Test -->
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.7.0" />
-    <PackageVersion Include="Moq" Version="4.18.4" />
+    <PackageVersion Include="Moq" Version="[4.18.4]" />
     <PackageVersion Include="System.Threading.Channels" Version="7.0.0" />
     <PackageVersion Include="System.Threading.Tasks.Dataflow" Version="7.0.0" />
     <PackageVersion Include="xunit" Version="2.4.2" />
@@ -55,19 +55,6 @@
     <!-- Symbols -->
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="1.1.1" />
     <!-- Analyzers -->
-    <!-- TODO: Not working with .NET Standard 2.0
-    <PackageVersion Include="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" Version="4.1.0" />
-    <PackageReference Include="Microsoft.CodeDom.Providers.DotNetCompilerPlatform">
-      <PrivateAssets>all</PrivateAssets>
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-    </PackageReference>
-
-    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.CodeStyle" Version="4.5.0" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.CodeStyle">
-      <PrivateAssets>all</PrivateAssets>
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-    </PackageReference>
-    -->
     <PackageVersion Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="8.0.0-preview1.23165.1" />
     <PackageReference Include="Microsoft.CodeAnalysis.NetAnalyzers">
       <PrivateAssets>all</PrivateAssets>