[docs] fix jobs from graphs example (#7722)

typo

### How I Tested These Changes

put under test

docs/content/concepts/ops-jobs-graphs/jobs-graphs.mdx

@@ -87,7 +87,7 @@ local_server = ResourceDefinition.mock_resource()
 
 prod_job = do_stuff.to_job(resource_defs={"server": prod_server}, name="do_stuff_prod")
 local_job = do_stuff.to_job(
-    resource_defs={"local": local_server}, name="do_stuff_local"
+    resource_defs={"server": local_server}, name="do_stuff_local"
 )
 ```
 

examples/docs_snippets/docs_snippets/concepts/solids_pipelines/jobs_from_graphs.py

@@ -24,6 +24,6 @@ def do_stuff():
 
 prod_job = do_stuff.to_job(resource_defs={"server": prod_server}, name="do_stuff_prod")
 local_job = do_stuff.to_job(
-    resource_defs={"local": local_server}, name="do_stuff_local"
+    resource_defs={"server": local_server}, name="do_stuff_local"
 )
 # end_define_jobs

examples/docs_snippets/docs_snippets_tests/concepts_tests/solids_pipelines_tests/test_pipelines.py

@@ -11,6 +11,7 @@
     process_directory,
 )
 from docs_snippets.concepts.solids_pipelines.fan_in_pipeline import fan_in
+from docs_snippets.concepts.solids_pipelines.jobs_from_graphs import local_job, prod_job
 from docs_snippets.concepts.solids_pipelines.linear_pipeline import linear
 from docs_snippets.concepts.solids_pipelines.multiple_io_pipeline import (
     inputs_and_outputs,
@@ -96,3 +97,8 @@ def test_retry_examples():
     # just that they run
     assert retry_job.execute_in_process(raise_on_error=False)
     assert default_and_override_job.execute_in_process(raise_on_error=False)
+
+
+def test_jobs_from_graphs():
+    assert local_job.execute_in_process()
+    assert prod_job.execute_in_process()