Update package versions in regression.fsproj

Updated `Argu` from `6.1.1` to `6.2.5` and `FSharp.Core` from `7.0.400` to `9.0.300-beta.25079.4`.

Author: usr3-1415

regression/regression.fsproj

@@ -12,12 +12,12 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Argu" Version="6.1.1" />
+    <PackageReference Include="Argu" Version="6.2.5" />
     <PackageReference Include="FSharp.Collections.ParallelSeq" Version="1.2.0" />
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Update="FSharp.Core" Version="7.0.400" />
+    <PackageReference Update="FSharp.Core" Version="9.0.300-beta.25079.4" />
   </ItemGroup>
 
 </Project>