Revert "Try to use the db in tests"

This reverts commit 10c221ec8b.

.github/workflows/tests.yml

@@ -13,7 +13,6 @@ jobs:
       - uses: actions/checkout@v3
       - uses: cachix/install-nix-action@v22
       - uses: DeterminateSystems/magic-nix-cache-action@main
-      - uses: HatsuneMiku3939/direnv-action@v1
       - name: Test
         run: |
           nix flake check -L -j auto

flake.nix

@@ -82,10 +82,10 @@
             doCheck = true;
             name = "test";
             src = ./.;
-            checkInputs = [ pkgs.inventoryDevEnv pkgs.postgresql_15 pkgs.overmind ];
+            checkInputs = [ pkgs.inventoryDevEnv ];
             checkPhase = ''
               mkdir -p $out
-              pytest --ds=network_inventory.settings.local \
+              pytest --ds=network_inventory.settings.ram_test \
                      -nauto \
                      --nomigrations \
                      --cov=./src \