Bump Microsoft.Build.Locator from 1.6.10 to 1.7.8 (#265)

Bumps [Microsoft.Build.Locator](https://github.com/microsoft/MSBuildLocator) from 1.6.10 to 1.7.8.
- [Release notes](https://github.com/microsoft/MSBuildLocator/releases)
- [Commits](microsoft/MSBuildLocator@v1.6.10...v1.7.8)

---
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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/Incrementalist.Cmd/Incrementalist.Cmd.csproj

@@ -12,7 +12,7 @@
 
   <ItemGroup>
     <PackageReference Include="CommandLineParser" Version="2.9.1" />
-    <PackageReference Include="Microsoft.Build.Locator" Version="1.6.10" />
+    <PackageReference Include="Microsoft.Build.Locator" Version="1.7.8" />
     <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="$(RoslynVersion)" />
     <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="8.0.0" />
     <PackageReference Include="NuGet.ProjectModel" Version="$(NugetVersion)" />