Updates for Python 3.12 and remove 3.7 support

.github/workflows/tests.yml

@@ -13,6 +13,7 @@ jobs:
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12"
       fail-fast: false
     steps:
       - uses: actions/checkout@v4

setup.py

@@ -24,7 +24,7 @@
     version=versioneer.get_version(),
     cmdclass=versioneer.get_cmdclass(),
     packages=find_packages(exclude=("tests", "docs")),
-    python_requires=">=3.7",
+    python_requires=">=3.8",
     install_requires=install_requires,
     entry_points={
         "prefect.collections": [
@@ -38,10 +38,11 @@
         "Intended Audience :: System Administrators",
         "License :: OSI Approved :: Apache Software License",
         "Programming Language :: Python :: 3 :: Only",
-        "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",
         "Topic :: Software Development :: Libraries",
     ],
 )