[O] Fix unclosed resource

app/src/main/java/org/hydev/wearsync/mi/MiFitnessModels.kt

@@ -62,17 +62,18 @@ val MI_EMPTY = MiFitness(emptyList(), emptyList())
 
 fun readMiFitness(path: String): MiFitness
 {
-    val db = SQLiteDatabase.openDatabase(path, null, 0)
-    val days = db.rawQuery("SELECT * FROM sleep_segment", null).use {
-        it.seq.mapNotNull { c ->
-            val json = c str "value"
-            when (c str "key")
-            {
-                "watch_night_sleep" -> json?.parseJson<SleepNight>()
-                "watch_daytime_sleep" -> json?.parseJson<SleepDaytime>()
-                else -> null
-            }
-        }.toList()
+    val days = SQLiteDatabase.openDatabase(path, null, 0).use { db ->
+        db.rawQuery("SELECT * FROM sleep_segment", null).use {
+            it.seq.mapNotNull { c ->
+                val json = c str "value"
+                when (c str "key")
+                {
+                    "watch_night_sleep" -> json?.parseJson<SleepNight>()
+                    "watch_daytime_sleep" -> json?.parseJson<SleepDaytime>()
+                    else -> null
+                }
+            }.toList()
+        }
     }
 
     if (days.isEmpty()) return MiFitness(emptyList(), emptyList())