chore: update RTKM and RTKMP dividends

Author: WLM1ke

dump/dividends.json

@@ -4083,6 +4083,10 @@
       {
         "day": "2025-08-13T00:00:00",
         "dividend": 2.71
+      },
+      {
+        "day": "2026-07-20T00:00:00",
+        "dividend": 2.71
       }
     ],
     "uid": "RTKM"
@@ -4128,6 +4132,10 @@
       {
         "day": "2025-08-13T00:00:00",
         "dividend": 6.25
+      },
+      {
+        "day": "2026-07-20T00:00:00",
+        "dividend": 2.71
       }
     ],
     "uid": "RTKMP"