[requires.io] dependency update

requires · requires · commit b2c80f345950 · 2021-03-14T06:54:31.000-07:00
diff --git a/tox.ini b/tox.ini
@@ -340,7 +340,7 @@ basepython = {[default]basepython}
 
 deps =
     {[testenv:docs]deps}
-    sphinx-autobuild==2020.9.1
+    sphinx-autobuild==2021.3.14
 
 commands =
     sphinx-autobuild                       \
