Bump BenchmarkDotNet from 0.14.0 to 0.15.4

---
updated-dependencies:
- dependency-name: BenchmarkDotNet
  dependency-version: 0.15.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Tests/Benchmarks/Benchmarks.csproj

@@ -6,7 +6,7 @@
     <OutputType>Exe</OutputType>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="BenchmarkDotNet" Version="0.14.0" />
+    <PackageReference Include="BenchmarkDotNet" Version="0.15.4" />
     <PackageReference Include="Bogus" Version="35.6.1" />
     <!-- Resolve MSB3277 -->
     <PackageReference Include="System.Reflection.Metadata" Version="9.0.1" Condition="'$(TargetFramework)' == 'net472'" />