Update dependency sphinx to v1.8.6

renovate[bot] · core23 · commit 8633455e89ce · 2022-10-02T12:26:59.000+02:00
diff --git a/docs/requirements.txt b/docs/requirements.txt
@@ -1,5 +1,5 @@
 Pygments==2.13.0
-sphinx==1.8.5
+sphinx==1.8.6
 git+https://github.com/fabpot/sphinx-php.git@v2.0.2#egg_name=sphinx-php
 sphinx_rtd_theme==0.5.2
 jinja2==3.0.3
