Update distribution-scripts

Updates `distribution-scripts` dependency to crystal-lang/distribution-scripts@73e95c7

This includes the following changes:

* ls
* Drop printing readelf
* Make --trace

.circleci/config.yml

@@ -8,7 +8,7 @@ parameters:
   distribution-scripts-version:
     description: "Git ref for version of https://github.com/crystal-lang/distribution-scripts/"
     type: string
-    default: "71cd5f39cb3d4ff8f6fee07102022b1d825ddd0f"
+    default: "73e95c793ec6327dfb2fde15ed9409f587cbc72e"
   previous_crystal_base_url:
     description: "Prefix for URLs to Crystal bootstrap compiler"
     type: string