Enforce use of any instead of interface{} (#30588)

server/public/utils/json_test.go

@@ -296,7 +296,7 @@ func TestIsJSONEmpty(t *testing.T) {
 			if !testCase.Empty {
 				// don't really need to test the JSON unmarshaller but this is included
 				// to ensure the test cases stay valid.
-				var v interface{}
+				var v any
 				err := json.Unmarshal(testCase.Data, &v)
 				assert.NoError(t, err)
 			}