build(deps): bump Verify.MSTest from 27.0.1 to 27.1.0 in the all group

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


Updates `Verify.MSTest` from 27.0.1 to 27.1.0
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](VerifyTests/Verify@27.0.1...27.1.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

src/tests/EventGenerator.SnapshotTests/EventGenerator.SnapshotTests.csproj

@@ -18,7 +18,7 @@
   <ItemGroup Label="Generator tests packages">
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing.MSTest" Version="1.1.2" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.11.0" />
-    <PackageReference Include="Verify.MSTest" Version="27.0.1" />
+    <PackageReference Include="Verify.MSTest" Version="27.1.0" />
     <PackageReference Include="Verify.SourceGenerators" Version="2.5.0" />
     <PackageReference Include="H.Generators.Extensions" Version="1.22.0" />
     <PackageReference Include="H.Generators.Tests.Extensions" Version="1.22.0" />