Update dependency sphinx-rtd-theme to v1.3.0

requirements.txt

@@ -22,5 +22,5 @@ sphinxcontrib-django==2.3
 sphinxcontrib-apidoc==0.3.0
 recommonmark==0.7.1
 django-docs==0.3.3
-sphinx-rtd-theme==1.2.2
+sphinx-rtd-theme==1.3.0
 sphinx==7.2.6
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