Bump HeterogeneousCollections from 1.0.6 to 1.0.7 in /ShapeSifter

Bumps [HeterogeneousCollections](https://github.com/G-Research/HeterogeneousCollections) from 1.0.6 to 1.0.7.
- [Release notes](https://github.com/G-Research/HeterogeneousCollections/releases)
- [Commits](G-Research/HeterogeneousCollections@HeterogeneousCollections.1.0.6...HeterogeneousCollections.1.0.7)

---
updated-dependencies:
- dependency-name: HeterogeneousCollections
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

ShapeSifter/ShapeSifter.fsproj

@@ -45,7 +45,7 @@
 
  <ItemGroup>
  <PackageReference Update="FSharp.Core" Version="4.5.0" />
- <PackageReference Include="HeterogeneousCollections" Version="1.0.6" />
+ <PackageReference Include="HeterogeneousCollections" Version="1.0.7" />
  </ItemGroup>
 
 </Project>