Merge pull request #1722 from apache/dependabot/pip/sphinx-5.0.2

Bump sphinx from 4.5.0 to 5.0.2
diff --git a/requirements-rtd.txt b/requirements-rtd.txt
index af8fee4..9a33be5 100644
--- a/requirements-rtd.txt
+++ b/requirements-rtd.txt
@@ -1,2 +1,2 @@
 # Requirements for ReadTheDocs
-sphinx==4.5.0
+sphinx==5.0.2