Add changesets config option for always upgrading internal dependents (Shopify#6243)

Author: sam-b-rose

.changeset/config.json

@@ -7,5 +7,8 @@
   "access": "public",
   "baseBranch": "main",
   "updateInternalDependencies": "patch",
-  "ignore": []
+  "ignore": [],
+  "___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH": {
+    "updateInternalDependents": "always"
+  }
 }