Bump Microsoft.Build.Locator from 1.5.5 to 1.6.1

Bumps [Microsoft.Build.Locator](https://github.com/microsoft/MSBuildLocator) from 1.5.5 to 1.6.1.
- [Release notes](https://github.com/microsoft/MSBuildLocator/releases)
- [Commits](https://github.com/microsoft/MSBuildLocator/commits)

---
updated-dependencies:
- dependency-name: Microsoft.Build.Locator
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

src/Tapper.Generator/Tapper.Generator.csproj

@@ -24,7 +24,7 @@
 
     <ItemGroup>
         <PackageReference Include="Microsoft.Build" Version="17.7.2" ExcludeAssets="runtime" />
-        <PackageReference Include="Microsoft.Build.Locator" Version="1.5.5" />
+        <PackageReference Include="Microsoft.Build.Locator" Version="1.6.1" />
         <PackageReference Include="ConsoleAppFramework" Version="4.2.4" />
         <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.4.0" />
         <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="4.4.0" />

tests/Tapper.Tests/Tapper.Tests.csproj

@@ -8,7 +8,7 @@
 
     <ItemGroup>
         <PackageReference Include="Microsoft.Build" Version="17.7.2" ExcludeAssets="runtime" />
-        <PackageReference Include="Microsoft.Build.Locator" Version="1.5.5" />
+        <PackageReference Include="Microsoft.Build.Locator" Version="1.6.1" />
         <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.4.0" />
         <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="4.4.0" />
     </ItemGroup>