chore: skip samples/snippets in top level snippets test

noxfile.py

@@ -113,8 +113,10 @@ def snippets(session):
     session.install("-e", ".[all]")
 
     # Run py.test against the snippets tests.
+    # Skip tests in samples/snippets, as those are run in a different session
+    # using the nox config from that directory.
     session.run("py.test", os.path.join("docs", "snippets.py"), *session.posargs)
-    session.run("py.test", "samples", *session.posargs)
+    session.run("py.test", "samples", "--ignore=samples/snippets", *session.posargs)
 
 
 @nox.session(python="3.8")