upgrade: bump pulumi/pulumi to 3.136.1 (#284)

This is the required commit to unblock CI:
https://github.com/pulumi/pulumi-docker-build/pull/284/commits/bc7700a50c3e278a42258ec6710a2869ef3f01f1

Resolves: #272

sdk/python/pulumi_docker_build/_utilities.py

@@ -264,7 +264,7 @@ def call_plain(
     output = pulumi.runtime.call(tok, props, res, typ)
 
     # Ingoring deps silently. They are typically non-empty, r.f() calls include r as a dependency.
-    result, known, secret, _ = _sync_await(asyncio.ensure_future(_await_output(output)))
+    result, known, secret, _ = _sync_await(asyncio.create_task(_await_output(output)))
 
     problem = None
     if not known: