Add python 3.12 support

Python 3.12 was released a while ago and is now used mainly in Ubuntu
Noble.

Also remove support for Python <= 3.8 because these are already in
EOL status.

Author: kajinamit

pyproject.toml

@@ -1,3 +1,6 @@
+[project]
+requires-python = ">= 3.9"
+
 [tool]
 
 [tool.poetry]
@@ -21,18 +24,17 @@ classifiers = [
     "Intended Audience :: Developers",
     "Operating System :: OS Independent",
     "License :: OSI Approved :: MIT License",
-    "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",
 ]
 packages = [
     { include = "sherlock" },
 ]
 
 [tool.poetry.dependencies]
-python = "^3.7"
+python = "^3.9"
 
 filelock = { version = "^3.7.1", optional = true }
 kubernetes = { version = "^24.2.0", optional = true }

tox.ini

@@ -66,11 +66,10 @@ healthcheck_start_period = 0
 
 [gh-actions]
 python =
-    3.7: py37
-    3.8: py38
     3.9: py39
     3.10: py310
     3.11: py311
+    3.12: py312
 fail_on_no_env = True
 
 [flake8]