build(deps): Bump Verify.MSTest from 28.7.0 to 28.8.1 in the all group

Bumps the all group with 1 update: [Verify.MSTest](https://github.com/VerifyTests/Verify).


Updates `Verify.MSTest` from 28.7.0 to 28.8.1
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](https://github.com/VerifyTests/Verify/commits)

---
updated-dependencies:
- dependency-name: Verify.MSTest
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/tests/CSharpToJsonSchema.SnapshotTests/CSharpToJsonSchema.SnapshotTests.csproj

@@ -26,7 +26,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing.MSTest" Version="1.1.2" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.12.0" />
-    <PackageReference Include="Verify.MSTest" Version="28.7.0" />
+    <PackageReference Include="Verify.MSTest" Version="28.8.1" />
     <PackageReference Include="Verify.SourceGenerators" Version="2.5.0" />
   </ItemGroup>
 

src/tests/CSharpToJsonSchema.UnitTests/CSharpToJsonSchema.UnitTests.csproj

@@ -26,7 +26,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing.MSTest" Version="1.1.2" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.12.0" />
-    <PackageReference Include="Verify.MSTest" Version="28.7.0" />
+    <PackageReference Include="Verify.MSTest" Version="28.8.1" />
     <PackageReference Include="Verify.SourceGenerators" Version="2.5.0" />
   </ItemGroup>