Load external PHP.wasm extension manifests (#1843)

Author: chubes4

package-lock.json

@@ -95,6 +95,7 @@
     "test:playground-readonly-mounts": "tsx tests/playground-readonly-mounts.test.ts",
     "test:playground-readonly-mounts-integration": "tsx tests/playground-readonly-mounts-integration.test.ts",
     "test:playground-phpunit-readonly-cache-integration": "tsx tests/playground-phpunit-readonly-cache.integration.test.ts",
+    "test:php-wasm-extension-manifests": "tsx tests/php-wasm-extension-manifests.test.ts",
     "test:browser-task-builder": "tsx tests/browser-task-builder.test.ts",
     "test:browser-runtime-generic-invoker": "tsx tests/browser-runtime-generic-invoker.test.ts",
     "test:browser-runtime-file-ops": "tsx tests/browser-runtime-file-ops.test.ts",
@@ -251,7 +252,7 @@
     "@automattic/wp-codebox-cli": "file:packages/cli",
     "@automattic/wp-codebox-core": "file:packages/runtime-core",
     "@automattic/wp-codebox-playground": "file:packages/runtime-playground",
-    "@php-wasm/node-8-4": "^3.1.36",
+    "@php-wasm/node-8-4": "^3.1.45",
     "@types/pngjs": "^6.0.5",
     "@wp-playground/cli": "^3.1.35",
     "@wp-playground/wordpress-builds": "^0.9.4",