[requires.io] dependency update

Author: requires

requirements.txt

@@ -36,7 +36,7 @@ pylint==2.3.1
 PyYAML==5.1              # via inlineplz, prospector
 requests==2.21.0
 requirements-detector==0.6
-restructuredtext-lint==1.2.2
+restructuredtext-lint==1.3.0
 scandir==1.10.0
 setoptconf==0.2.0
 six==1.12.0