chore(deps): bump bleach from 6.3.0 to 6.4.0 (#15444)

bleach 6.3.0's css extra caps tinycss2 at <1.5, which makes requirements.txt
impossible to co-install with any package requiring tinycss2>=1.5 (e.g.
weasyprint>=67) — pip fails with ResolutionImpossible. bleach 6.4.0 keeps the
css extra but lifts the cap to tinycss2>=1.1.0 with no upper bound.

Co-authored-by: devGregA <greg-agent-2@defectdojo.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Author: 3 people

requirements.txt

@@ -1,5 +1,5 @@
 # requirements.txt for DefectDojo using Python 3.x
-bleach==6.3.0
+bleach==6.4.0
 bleach[css]
 celery[sqs]==5.6.3
 # pycurl and boto3 are included via celery[sqs] for Celery Broker AWS (SQS) support