tests: fix lolwut tests

Starting with Valkey 9.0, the `lolwut` command doesn't contain `Redis
ver.` in the output, but `Valkey ver.`.

Signed-off-by: Bogdan Petre <[email protected]>

Author: bogdanp05

tests/test_commands.py

@@ -845,10 +845,10 @@ def test_lastsave(self, r):
     @skip_if_server_version_lt("5.0.0")
     def test_lolwut(self, r):
         lolwut = r.lolwut().decode("utf-8")
-        assert "Redis ver." in lolwut
+        assert "Valkey ver." in lolwut
 
         lolwut = r.lolwut(5, 6, 7, 8).decode("utf-8")
-        assert "Redis ver." in lolwut
+        assert "Valkey ver." in lolwut
 
     @pytest.mark.onlynoncluster
     @skip_if_server_version_lt("6.2.0")