Revert "docs: prevent build error by rolling back Sphinx version"

This reverts commit 65547c8701004f1a2a9ed9d16f1a372f4bd856e4. There is a
new release of sphinxcontrib-httpdomain [1] that fixes the issues with
Sphinx 4.1.x and later [2]

[1] https://github.com/sphinx-contrib/httpdomain/releases/tag/1.8.0
[2] https://github.com/sphinx-contrib/httpdomain/pull/54

diff --git a/docs/requirements.txt b/docs/requirements.txt
index b60bca53215fce3f21c1844877fcb9ea98f556ec..e2641c8fb996926ebf6803cc793a6bac9706a34e 100644 (file)
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,6 +1,4 @@
-# sphinx 4.1.x breaks sphinxcontrib-httpdomain which sphinxcontrib-openapi depends on
-# see https://github.com/sphinx-contrib/httpdomain/pull/51
-sphinx>=2.0,<4.1
+sphinx>=2.0
 reno>=2.2
 sphinx_rtd_theme~=0.5.0
 jinja2~=2.11.2