refactor(heatmaps): Replace check with require in HeatmapTileProvider.Builder

This commit replaces the `check` function with `require` for validating input data in the `HeatmapTileProvider.Builder`.

Using `require` is more idiomatic for precondition checks, throwing an `IllegalArgumentException` which is more appropriate in this context than the `IllegalStateException` thrown by `check`.

Author: dkhawk

library/src/main/java/com/google/maps/android/heatmaps/HeatmapTileProvider.kt

@@ -138,7 +138,7 @@ class HeatmapTileProvider private constructor(builder: Builder) : TileProvider {
          * @return A new HeatmapTileProvider.
          */
         fun build(): HeatmapTileProvider {
-            check(this.weightedData?.isNotEmpty() == true) { "No input data: you must use either .data or .weightedData before building." }
+            require(this.weightedData?.isNotEmpty() == true) { "No input data: you must use either .data or .weightedData before building." }
             return HeatmapTileProvider(this)
         }
     }