Remove Python 3.8 support

Python 3.8 is no longer part of the tested runtimes for 2024.2[1]
because its EOL is coming soon.

[1] https://governance.openstack.org/tc/reference/runtimes/2024.2.html

This allows us to replace md5 method from oslo.utils, which is being
deprecated now[2].

[2] https://review.opendev.org/c/openstack/oslo.utils/+/930879

Change-Id: I09ba9e8762e3fdbf4af63f270cb1f96b989fdf1a

manila/ssh_utils.py

@@ -12,13 +12,13 @@
 
 """Ssh utilities."""
 
+import hashlib
 import logging
 import os
 
 from eventlet import pools
 from oslo_config import cfg
 from oslo_log import log
-from oslo_utils.secretutils import md5
 
 from manila import exception
 from manila.i18n import _
@@ -44,7 +44,7 @@ def get_fingerprint(self):
     TODO(carloss) Remove this when paramiko is patched.
     See https://github.com/paramiko/paramiko/pull/1928
     """
-    return md5(self.asbytes(), usedforsecurity=False).digest()
+    return hashlib.md5(self.asbytes(), usedforsecurity=False).digest()
 
 
 if paramiko is None:

releasenotes/notes/remove-py38-5c619aee267bc1f3.yaml

@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    Support for Python 3.8 has been removed. Now the minimum python version
+    supported is 3.9 .

setup.cfg

@@ -6,7 +6,7 @@ description_file =
 author = OpenStack
 author_email = openstack-discuss@lists.openstack.org
 home_page = https://docs.openstack.org/manila/latest/
-python_requires = >=3.8
+python_requires = >=3.9
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology
@@ -16,7 +16,6 @@ classifier =
     Programming Language :: Python
     Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11