python 3.7 out because of incompatibilities with JAX

Author: acevedo-s

.github/workflows/test.yml

@@ -21,7 +21,6 @@ jobs:
           - {os: "ubuntu-22.04", python-version: "3.10"}
           - {os: "ubuntu-22.04", python-version: "3.9"}
           - {os: "ubuntu-20.04", python-version: "3.8"}
-          - {os: "ubuntu-20.04", python-version: "3.7"}
         #os: [ubuntu-latest] # TODO: add macos-latest, windows-latest ?
         #python-version: [3.7, 3.8, 3.9, 3.10, 3.11]