ci(ovn): add verification tests for database (#1048)

Signed-off-by: Mohammed Naser <mnaser@vexxhost.com>
diff --git a/flake.nix b/flake.nix
index 0469b84..f29612c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -15,14 +15,15 @@
         {
           devShell = pkgs.mkShell {
             buildInputs = with pkgs; [
+              bashInteractive
               earthly
+              glibcLocales
               go
               kubernetes-helm
               nixpkgs-fmt
               poetry
+              python311Packages.tox
               vendir
-              glibcLocales
-              bashInteractive
             ];
           };
         }