Update pygments>=2.12.0,<2.14.0 in requirements-optionals (#9142)

* Update pygments>=2.12.0,<2.16.1 in requirements-optionals

* Update requirements/requirements-optionals.txt

* Update requirements/requirements-optionals.txt

* Update requirements/requirements-optionals.txt

Author: auvipy

requirements/requirements-optionals.txt

@@ -6,5 +6,5 @@ django-guardian>=2.4.0,<2.5
 inflection==0.5.1
 markdown==3.3
 psycopg2-binary>=2.9.5,<2.10
-pygments==2.12
+pygments>=2.12.0,<2.14.0
 pyyaml>=5.3.1,<5.4