bump redis

Author: furlongm

requirements.txt

@@ -15,7 +15,7 @@ python-magic==0.4.27
 gitpython==3.1.44
 tenacity==8.2.3
 celery==5.4.0
-redis==5.2.1
+redis==6.4.0
 django-celery-beat==2.7.0
 tqdm==4.67.1
 cvss==3.4