Change autonym "using" to "Using"

Requested by the users.

data/langdb.yaml

@@ -418,7 +418,7 @@ languages:
   ood: [Latn, [AM], "ʼOʼodham ha-ñeʼokĭ"]
   or: [Orya, [AS], ଓଡ଼ିଆ]
   os: [Cyrl, [EU], Ирон]
-  osi: [Latn, [AS], using]
+  osi: [Latn, [AS], Using]
  # Bug: 60815
   ota: [Arab, [AS, EU], لسان عثمانى]
   ovd: [Latn, [EU], övdalsk]

language-data.json

@@ -2697,7 +2697,7 @@
             [
                 "AS"
             ],
-            "using"
+            "Using"
         ],
         "ota": [
             "Arab",