Bump FSharp.Data from 8.1.4 to 8.1.6

---
updated-dependencies:
- dependency-name: FSharp.Data
  dependency-version: 8.1.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -21,7 +21,7 @@
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.7.0" />
     <PackageVersion Include="NUnit" Version="4.5.1" />
     <PackageVersion Include="FsUnit" Version="7.1.1" />
-    <PackageVersion Include="FSharp.Data" Version="8.1.4" />
+    <PackageVersion Include="FSharp.Data" Version="8.1.6" />
     <PackageVersion Include="NUnit3TestAdapter" Version="6.2.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
     <PackageVersion Include="Ionide.KeepAChangelog.Tasks" Version="0.3.3" />