Merge #4784

4784: Closes #4783: service-experiments staging endpoint is incorrect r=pocmo a=travis79
Co-authored-by: Travis Long <tlong@mozilla.com>

components/service/experiments/src/main/java/mozilla/components/service/experiments/ExperimentsUpdater.kt

@@ -142,7 +142,7 @@ internal class ExperimentsUpdater(
         // Live example: https://firefox.settings.services.mozilla.com/v1/buckets/fennec/collections/experiments/records
         // There are different base URIs to use:
         const val KINTO_ENDPOINT_DEV = "https://kinto.dev.mozaws.net/v1"
-        const val KINTO_ENDPOINT_STAGING = "https://settings-writer.stage.mozaws.net/v1"
+        const val KINTO_ENDPOINT_STAGING = "https://settings.stage.mozaws.net/v1"
         const val KINTO_ENDPOINT_PROD = "https://firefox.settings.services.mozilla.com/v1"
 
         private const val EXPERIMENTS_BUCKET_NAME = "main"