remove echo from allowlist

tox.ini

@@ -71,15 +71,13 @@ set_env =
 package =
     !cov: wheel
     cov: editable
-allowlist_externals =
-    echo
 commands_pre =
     oldestdeps: minimum_dependencies stpipe --filename requirements-min.txt
 # this package doesn't depend on numpy directly but the old versions of dependencies
 # will allow numpy 2.0 to be installed (and won't work with numpy 2.0). So we pin it.
     oldestdeps: pip install numpy<2.0
     oldestdeps: pip install -r requirements-min.txt
-    jwst,romancal: bash -c "pip freeze -q | grep 'stcal @' > {env_tmp_dir}/requirements.txt"
+    jwst,romancal: bash -c "pip freeze -q | grep 'stpipe @' > {env_tmp_dir}/requirements.txt"
     jwst: git clone https://github.com/spacetelescope/jwst.git
     romancal: git clone https://github.com/spacetelescope/romancal.git
     jwst: pip install -e jwst[test]