chore: update authorized_user.json and use latest sphinx (#900)

* chore: update authorized_user.json

* chore: use latest sphinx

* 🦉 Updates from OwlBot

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
diff --git a/noxfile.py b/noxfile.py
index 885dbd6..efb367e 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -137,9 +137,7 @@
     """Build the docs for this library."""
 
     session.install("-e", ".[aiohttp]")
-    session.install(
-        "sphinx<3.0.0", "alabaster", "recommonmark", "sphinx-docstring-typing"
-    )
+    session.install("sphinx", "alabaster", "recommonmark", "sphinx-docstring-typing")
 
     shutil.rmtree(os.path.join("docs", "_build"), ignore_errors=True)
     session.run(
diff --git a/system_tests/secrets.tar.enc b/system_tests/secrets.tar.enc
index 58c59ed..3f42f87 100644
--- a/system_tests/secrets.tar.enc
+++ b/system_tests/secrets.tar.enc
Binary files differ