Have to do this for a breaking change

Author: kmadsen

libnavui-androidauto/build.gradle

@@ -40,8 +40,9 @@ dependencies {
 
     // This defines the minimum version of Navigation which is included in this SDK. To upgrade the
     // Navigation versions, you can specify a newer version in your downstream build.gradle.
-    releaseApi("com.mapbox.navigation:android:2.9.0-alpha.4")
-    debugApi project(":libnavigation-android")
+    // TODO replace after the release
+    // api("com.mapbox.navigation:android:2.9.0-beta.1")
+    api project(":libnavigation-android")
 
     // Search is currently in beta so it is not included in this SDK. The functionality of search
     // is included behind this library's api.

libnavui-androidauto/src/main/java/com/mapbox/androidauto/car/navigation/speedlimit/CarSpeedLimitRenderer.kt

@@ -76,7 +76,7 @@ internal constructor(
         val signFormat = speedLimitOptions.forcedSignFormat
             ?: locationMatcherResult.speedLimit?.speedLimitSign
         val threshold = speedLimitOptions.warningThreshold
-        when (distanceFormatterOptions?.unitType) {
+        when (distanceFormatterOptions!!.unitType) {
             UnitType.IMPERIAL -> {
                 val speedLimit =
                     locationMatcherResult.speedLimit?.speedKmph?.let { speedLimitKmph ->