refactor(ngcc): change async locker timeout to 250 secs (#36979)

Previously the `AsyncLocker` was configured to only wait
50x500ms before timing out. This is 25secs, which is often
less than a normal run of ngcc, so the chance of a timeout
flake was quite high.

The timeout is now 500x500ms, which is 250secs.

PR Close #36979

packages/compiler-cli/ngcc/src/main.ts

@@ -155,7 +155,7 @@ function getExecutor(
   const lockFile = new LockFileWithChildProcess(fileSystem, logger);
   if (async) {
     // Execute asynchronously (either serially or in parallel)
-    const locker = new AsyncLocker(lockFile, logger, 500, 50);
+    const locker = new AsyncLocker(lockFile, logger, 500, 500);
     if (inParallel) {
       // Execute in parallel. Use up to 8 CPU cores for workers, always reserving one for master.
       const workerCount = Math.min(8, os.cpus().length - 1);