Bump System.Speech from 10.0.5 to 10.0.6

---
updated-dependencies:
- dependency-name: System.Speech
  dependency-version: 10.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

BabySmash.csproj

@@ -55,7 +55,7 @@
 
   <ItemGroup>
     <!-- NuGet packages -->
-    <PackageReference Include="System.Speech" Version="10.0.5" />
+    <PackageReference Include="System.Speech" Version="10.0.6" />
     <PackageReference Include="Updatum" Version="1.3.5" />
   </ItemGroup>