Remove python 3.8 support

Author: emlowe

.github/workflows/build-riscv64.yml

@@ -32,14 +32,14 @@ jobs:
             emoji: 🐧
             runs-on: [ubuntu-latest]
         python:
-          - major-dot-minor: '3.8'
-            matrix: '3.8'
           - major-dot-minor: '3.9'
             matrix: '3.9'
           - major-dot-minor: '3.10'
             matrix: '3.10'
           - major-dot-minor: '3.11'
             matrix: '3.11'
+          - major-dot-minor: '3.12'
+            matrix: '3.12'
 
     steps:
       - name: Checkout repository

.github/workflows/build.yml

@@ -45,10 +45,6 @@ jobs:
             runs-on:
               intel: [windows-latest]
         python:
-          - major-dot-minor: '3.8'
-            cibw-build: 'cp38-*'
-            manylinux: manylinux_2_28
-            matrix: '3.8'
           - major-dot-minor: '3.9'
             cibw-build: 'cp39-*'
             manylinux: manylinux_2_28

setup.py

@@ -140,7 +140,7 @@ def build_extension(self, ext):
     author_email="[email protected]",
     description="Chia vdf verification (wraps C++)",
     license="Apache-2.0",
-    python_requires=">=3.8",
+    python_requires=">=3.9",
     long_description=open("README.md").read(),
     long_description_content_type="text/markdown",
     url="https://github.com/Chia-Network/chiavdf",