Stop testing 3.8 and 3.9, test 3.15 and PyPy3

.github/workflows/check-for-updates.yml

@@ -46,10 +46,10 @@ jobs:
           fetch-depth: 1  # Shallow clone to save time
           persist-credentials: true  # Needed to push the update
 
-      - name: Set up Python 3.12
+      - name: Set up Python 3
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: '3.12'
+          python-version: '3'
 
       - name: Install dependencies
         run: |

.github/workflows/publish.yml

@@ -1,4 +1,4 @@
-# This workflow is triggered two ways:
+# This workflow is triggered in two ways:
 #
 # 1. When a tag is created, the workflow will upload the package to
 #    test.pypi.org.

.github/workflows/tests.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["2.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"]
+        python-version: ["2.7", "3.10", "3.11", "pypy3.11", "3.12", "3.13", "3.14", "3.15t", "3.15"]
         os: ["ubuntu-latest", "windows-latest", "macos-latest"]
         exclude:
           - python-version: "2.7"