rtx: add simple version test

pkgs/tools/misc/rtx/default.nix

@@ -11,6 +11,8 @@
 , direnv
 , Security
 , SystemConfiguration
+, rtx
+, testers
 }:
 
 rustPlatform.buildRustPackage rec {
@@ -27,7 +29,7 @@ rustPlatform.buildRustPackage rec {
   cargoHash = "sha256-LvW5xGVggzuXlFPhbrc93Dht3S9zaQyx9Nm+Mx/Mjh0=";
 
   nativeBuildInputs = [ installShellFiles pkg-config ];
-  buildInputs = [ openssl  ] ++ lib.optionals stdenv.isDarwin [ Security SystemConfiguration ];
+  buildInputs = [ openssl ] ++ lib.optionals stdenv.isDarwin [ Security SystemConfiguration ];
 
   postPatch = ''
     patchShebangs --build ./test/data/plugins/**/bin/* ./src/fake_asdf.rs ./src/cli/reshim.rs
@@ -59,6 +61,7 @@ rustPlatform.buildRustPackage rec {
 
   passthru = {
     updateScript = nix-update-script { };
+    tests.version = testers.testVersion { package = rtx; };
   };
 
   meta = {