Bump workerd to 1.20231016.0 and prevent ProxyServer eviction (#717)

* Bump `workerd` and versions to `3.20231016.0`

* Update `workerd` configuration schema and type definitions

Also add an override for `capnpc-ts`'s TypeScript version to prevent
issues re-generating types in the future.

* Prevent `ProxyServer` Durable Object eviction

cloudflare/workerd#1138 introduced Durable Object's eviction behaviour
to `workerd`. We really don't want the `ProxyServer`'s singleton
object to be evicted, as this would invalidate proxy stubs' heap
addresses. This change makes sure the `preventEviction` flag is set.

Author: mrbbot

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@miniflare/root",
-  "version": "3.20231010.0",
+  "version": "3.20231016.0",
   "private": true,
   "description": "Fun, full-featured, fully-local simulator for Cloudflare Workers",
   "keywords": [
@@ -60,5 +60,10 @@
   },
   "volta": {
     "node": "18.16.0"
+  },
+  "overrides": {
+    "capnpc-ts": {
+      "typescript": "4.2.4"
+    }
   }
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "miniflare",
-  "version": "3.20231010.0",
+  "version": "3.20231016.0",
   "description": "Fun, full-featured, fully-local simulator for Cloudflare Workers",
   "keywords": [
     "cloudflare",
@@ -35,7 +35,7 @@
     "source-map-support": "0.5.21",
     "stoppable": "^1.1.0",
     "undici": "^5.22.1",
-    "workerd": "1.20231010.0",
+    "workerd": "1.20231016.0",
     "ws": "^8.11.0",
     "youch": "^3.2.2",
     "zod": "^3.20.6"

packages/miniflare/package.json

@@ -551,6 +551,12 @@ export function getGlobalServices({
           {
             className: "ProxyServer",
             uniqueKey: `${SERVICE_ENTRY}-ProxyServer`,
+            // `ProxyServer` relies on a singleton object containing of "heap"
+            // mapping addresses to native references. If the singleton object
+            // were evicted, addresses would be invalidated. Therefore, we
+            // prevent eviction to ensure heap addresses stay valid for the
+            // lifetime of the `workerd` process
+            preventEviction: true,
           },
         ],
         // `ProxyServer` doesn't make use of Durable Object storage