Pin python-dateutils to 2.8.2 while installing cookiecutter

PROD-37289

Change-Id: I4301b985a5156e49927335d2bef30d5e46c19ec9
diff --git a/tcp_tests/templates/shared-salt.yaml b/tcp_tests/templates/shared-salt.yaml
index 1f43386..d6c8cdf 100644
--- a/tcp_tests/templates/shared-salt.yaml
+++ b/tcp_tests/templates/shared-salt.yaml
@@ -455,7 +455,7 @@
     . /root/venv-reclass-tools/bin/activate;
     pip install -U pip
 
-    pip install cookiecutter
+    pip install "python-dateutil==2.8.2" cookiecutter
 
     chmod 0600 /tmp/{{ COOKIECUTTER_TEMPLATES_REPOSITORY_KEY_PATH | basename }}
     eval $(ssh-agent)