Supress atty cargo audit warning

This warning is currently blocking our PR CI, and there is no remedy
available, as there is no patched version of the atty crate available,
and we do not know how long it will take for criterion to remove the
dependency.

Signed-off-by: Patrick Roy <roypat@amazon.co.uk>

Author: roypat

tests/integration_tests/security/test_sec_audit.py

@@ -21,4 +21,7 @@ def test_cargo_audit():
     @type: security
     """
     # Run command and raise exception if non-zero return code
-    utils.run_cmd("cargo audit --deny warnings -q", cwd=defs.FC_WORKSPACE_DIR)
+    utils.run_cmd(
+        "cargo audit --deny warnings -q  --ignore RUSTSEC-2021-0145",
+        cwd=defs.FC_WORKSPACE_DIR,
+    )