Update jinja2 version to 3.1.6 (#3841)

See https://nvd.nist.gov/vuln/detail/CVE-2024-56326

Author: malfet

.ci/docker/requirements.txt

@@ -37,7 +37,7 @@ spacy==3.7.1  # Keep this version consistent with the model version in .jenkins/
 ray[serve,train,tune]==2.55.0
 tiktoken
 tensorboard
-jinja2==3.1.3
+jinja2==3.1.6
 pytorch-lightning
 torchx
 torchrl==0.10.1