clickhouse: Correct tests definition typo

Author: jpds

pkgs/by-name/cl/clickhouse/generic.nix

@@ -155,7 +155,7 @@ llvmPackages_19.stdenv.mkDerivation (finalAttrs: {
   requiredSystemFeatures = [ "big-parallel" ];
 
   passthru = {
-    tests.clickhouse = if lts then nixosTests.clickhouse-lts else nixosTests.clickhouse;
+    tests = if lts then nixosTests.clickhouse-lts else nixosTests.clickhouse;
 
     updateScript = nix-update-script {
       extraArgs = nixUpdateExtraArgs;