Update setup.py version

Author: russella-acm

setup.py

@@ -2,7 +2,7 @@
 
 setup(
     name="createsend",
-    version='7.0.0',
+    version='8.0.0',
     description="A library which implements the complete functionality of the Campaign Monitor API.",
     author='Campaign Monitor',
     author_email='support@campaignmonitor.com',
@@ -35,20 +35,16 @@
 
         # Generally, we support the following.
         "Programming Language :: Python",
-        "Programming Language :: Python :: 2",
         "Programming Language :: Python :: 3",
 
         # Specifically, we support the following releases.
-        "Programming Language :: Python :: 2.7",
-        "Programming Language :: Python :: 3.0",
-        "Programming Language :: Python :: 3.1",
-        "Programming Language :: Python :: 3.3",
-        "Programming Language :: Python :: 3.4",
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
     ]
 )