Fix spawnHandler signature after merge

The sandboxedSpawnHandlerFactory now expects a getPHPInstance callback.
Update boot.ts to use instanceManager instead of processManager and add
a null check for requestHandler.

Author: adamziel

packages/playground/cli/src/blueprints-v2/worker-thread-v2.ts

@@ -469,7 +469,8 @@ export class PlaygroundCliBlueprintV2Worker extends PHPWorker {
 				constants,
 				phpIniEntries,
 				cookieStore: false,
-				spawnHandler: sandboxedSpawnHandlerFactory,
+				spawnHandler: (getPHPInstance) =>
+					sandboxedSpawnHandlerFactory(getPHPInstance),
 			});
 			this.__internal_setRequestHandler(requestHandler);
 

packages/playground/wordpress/src/boot.ts

@@ -420,10 +420,10 @@ export async function bootRequestHandler(options: BootRequestHandlerOptions) {
 
 		// Spawn handler is responsible for spawning processes for all the
 		// `popen()`, `proc_open()` etc. calls.
-		if (spawnHandler) {
+		if (spawnHandler && requestHandler) {
 			await php.setSpawnHandler(
 				spawnHandler(() =>
-					requestHandler.processManager.acquirePHPInstance({
+					requestHandler.instanceManager.acquirePHPInstance({
 						considerPrimary: false,
 					})
 				)