Revert "don't install lsp on ci"

This reverts commit 837bdfe.

Author: pvsr

flake.nix

@@ -28,6 +28,9 @@
                     pytest
                     mypy
                     black
+
+                    pylsp-mypy
+                    python-lsp-black
                   ]))
               ];
             });
@@ -43,13 +46,6 @@
         devShells.ci = mkDevShell {};
         devShells.default = mkDevShell {
           inherit (self.checks.${system}.pre-commit-check) shellHook;
-          buildInputs = [
-            (pkgs.python3.withPackages (ps:
-              with ps; [
-                pylsp-mypy
-                python-lsp-black
-              ]))
-          ];
         };
 
         checks = {