Bump aleph-message version to 0.3.1

Author: aliel

setup.cfg

@@ -37,7 +37,7 @@ install_requires =
     eciespy
     typing_extensions
     typer
-    aleph-message~=0.3.0
+    aleph-message~=0.3.1
     eth_account>=0.4.0
     python-magic
 # The usage of test_requires is discouraged, see `Dependency Management` docs