Add missing led to matrix layout

keyboards/ducky/one2sf/1967st/info.json

@@ -66,6 +66,7 @@
             {"matrix": [2, 9], "x": 144, "y": 32, "flags": 4},
             {"matrix": [2, 10], "x": 160, "y": 32, "flags": 4},
             {"matrix": [2, 11], "x": 176, "y": 32, "flags": 4},
+            {"matrix": [2, 12], "x": 192, "y": 32, "flags": 4},
             {"matrix": [2, 13], "x": 208, "y": 32, "flags": 4},
             {"matrix": [2, 14], "x": 224, "y": 32, "flags": 4},
             {"matrix": [3, 0], "x": 0, "y": 48, "flags": 5},