[build][ci] tweak iOS build workflow

.circleci/config.yml

@@ -184,6 +184,9 @@ jobs:
           pod install
     - save-cache: *save-pods-cache
 
+    # must always be after environment config job but before ios build
+    - run: *packager-jet
+
     # XCode Build
     - restore-cache: *restore-ios-build-cache
     - run:
@@ -191,9 +194,6 @@ jobs:
         command: cd tests && yarn run build-ios
     - save-cache: *save-ios-build-cache
 
-    # must always be after environment  config job
-    - run: *packager-jet
-
     # Now Test \o/
     - run:
         name: Run Jet Tests