crabfit-{frontend,api}: change tests to attrset (#350000)

pkgs/by-name/cr/crabfit-api/package.nix

@@ -68,7 +68,9 @@ rustPlatform.buildRustPackage rec {
 
   PROTOC = "${protobuf}/bin/protoc";
 
-  passthru.tests = [ nixosTests.crabfit ];
+  passthru.tests = {
+    inherit (nixosTests) crabfit;
+  };
 
   meta = {
     description = "Enter your availability to find a time that works for everyone";

pkgs/by-name/cr/crabfit-frontend/package.nix

@@ -107,7 +107,9 @@ stdenv.mkDerivation (finalAttrs: {
     ln -s /var/cache/crabfit $out/standalone/.next/cache
   '';
 
-  passthru.tests = [ nixosTests.crabfit ];
+  passthru.tests = {
+    inherit (nixosTests) crabfit;
+  };
 
   meta = {
     description = "Enter your availability to find a time that works for everyone";