make mypy pass

Author: atvaccaro

Diff for: warehouse/scripts/visualize.py

@@ -125,7 +125,7 @@ def build_graph(
         G.add_node(node_or_result.gvrepr, **node_or_result.gvattrs, style="filled")
 
     for node_or_result in nodes:
-        node: DbtNode = (
+        node = (
             node_or_result.node
             if isinstance(node_or_result, RunResultOutput)
             else node_or_result
@@ -268,6 +268,7 @@ def ci_report(
             latest_dir,
         ]
     ).result
+    assert isinstance(modified_models, list)
     viz(
         "man",
         include=modified_models,