APM-2488-Updated the test cases

Author: NautiyalVikas1

scripts/trigger_pipelines.py

@@ -15,6 +15,8 @@ def __init__(self):
         self.client_secret = os.environ["AZ_CLIENT_SECRET"]
         self.client_tenant = os.environ["AZ_CLIENT_TENANT"]
         self.access_token = self._get_access_token()
+        self.token = self.access_token
+        self.auth = requests.auth.HTTPBasicAuth("", self.token)
         self.notify_commit_sha = os.environ["NOTIFY_COMMIT_SHA"]
         self.utils_pr_number = os.environ["UTILS_PR_NUMBER"]
         self.notify_github_repo = "NHSDigital/api-management-utils"