W&B integration follow up 2/ update example to defs (#12059)

### Summary & Motivation
depends on #10470

this PR converts the example from using repository to defs as the entry
point, per changes in 1.1.7
(#11167)

### How I Tested These Changes
- local dagit can load
- unit test

examples/with_wandb/pyproject.toml

@@ -1,3 +1,6 @@
 [build-system]
 requires = ["setuptools"]
 build-backend = "setuptools.build_meta"
+
+[tool.dagster]
+module_name = "with_wandb"

examples/with_wandb/with_wandb/__init__.py

@@ -0,0 +1,38 @@
+from dagster import (
+    Definitions,
+    StringSource,
+    load_assets_from_package_module,
+    make_values_resource,
+)
+from dagster_wandb import wandb_artifacts_io_manager, wandb_resource
+
+from . import assets
+from .ops.launch.run_launch_agent import run_launch_agent_example
+from .ops.launch.run_launch_job import run_launch_job_example
+from .ops.partitioned_job import partitioned_job_example
+from .ops.simple_job import simple_job_example
+
+wandb_config = make_values_resource(
+    entity=StringSource,
+    project=StringSource,
+)
+
+defs = Definitions(
+    assets=load_assets_from_package_module(assets),
+    jobs=[
+        simple_job_example,
+        partitioned_job_example,
+        run_launch_agent_example,
+        run_launch_job_example,
+    ],
+    resources={
+        "wandb_config": wandb_config.configured(
+            {
+                "entity": {"env": "WANDB_ENTITY"},
+                "project": {"env": "WANDB_PROJECT"},
+            }
+        ),
+        "wandb_resource": wandb_resource.configured({"api_key": {"env": "WANDB_API_KEY"}}),
+        "io_manager": wandb_artifacts_io_manager.configured({"cache_duration_in_minutes": 60}),
+    },
+)

examples/with_wandb/with_wandb_tests/test_basic_wanb_example.py

@@ -1,5 +1,8 @@
-from with_wandb.repository import dagster_with_wandb
+from with_wandb import defs
 
 
-def test_can_load():
-    assert dagster_with_wandb.get_job("simple_job_example")
+def test_defs_can_load():
+    assert defs.get_job_def("simple_job_example")
+    assert defs.get_job_def("partitioned_job_example")
+    assert defs.get_job_def("run_launch_agent_example")
+    assert defs.get_job_def("run_launch_job_example")