Remove Python 3.10 support

Python 3.10 is no longer part of the tested runtimes.

Change-Id: Ibe01332a495aef9ef5d04e76b61c606f815bc1b3
Signed-off-by: Takashi Kajinami <kajinamit@oss.nttdata.com>

Author: kajinamit

releasenotes/notes/remove-py310-5ee8bf147676093b.yaml

@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    Support for Python 3.10 has been removed. Now the minimum python version
+    supported is 3.11.

setup.cfg

@@ -7,7 +7,7 @@ license = Apache License, Version 2.0
 author = OpenStack
 author_email = openstack-discuss@lists.openstack.org
 home_page = https://docs.openstack.org/python-glanceclient/latest/
-python_requires = >=3.10
+python_requires = >=3.11
 classifier =
     Development Status :: 5 - Production/Stable
     Environment :: Console
@@ -20,9 +20,9 @@ classifier =
     Programming Language :: Python :: Implementation :: CPython
     Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
+    Programming Language :: Python :: 3.13
 
 [files]
 packages =