dev-python/grpclib: add 0.4.3 Python 3.11

Closes: https://bugs.gentoo.org/901153

Signed-off-by: Antonín Říha <antonin.riha@protonmail.com>

dev-python/grpclib/files/grpclib-add_css_file.patch

@@ -0,0 +1,10 @@
+diff --git a/docs/conf.py b/docs/conf.py
+index 7ccef26..766b77d 100644
+--- a/docs/conf.py
++++ b/docs/conf.py
+@@ -27,4 +27,4 @@ html_theme_options = {
+ 
+ 
+ def setup(app):
+-    app.add_stylesheet('style.css')
++    app.add_css_file('style.css')