Bump DotPrompt to 0.0.6.1 in CLI project

Fixes NU1605 downgrade error: DotPrompt.Sql.Cli had its own direct
reference to DotPrompt 0.0.5.1 which conflicted with the 0.0.6.1
reference in DotPrompt.Sql.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: azurecoder

DotPrompt.Sql.Cli/DotPrompt.Sql.Cli.csproj

@@ -26,7 +26,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="DotPrompt" Version="0.0.5.1" />
+        <PackageReference Include="DotPrompt" Version="0.0.6.1" />
     </ItemGroup>
 
 </Project>