CI: Update and renovate

* Remove python 2.7 (no longer support by Github actions)
* Use pypy-2.7 instead
* Use newer python actions: v4 (was: v3)

Author: jenisys

.github/workflows/test.yml

@@ -3,9 +3,12 @@
 
 name: tests
 on:
+  workflow_dispatch:
   push:
+    branches: [ "main", "release/**" ]
   pull_request:
-    branches: [ main ]
+    types: [opened, reopened, review_requested]
+    branches: [ "main" ]
 
 jobs:
   test:
@@ -15,15 +18,14 @@ jobs:
       fail-fast: false
       matrix:
         # PREPARED: os: [ubuntu-latest, macos-latest, windows-latest]
-        # PREPARED: python-version: ['3.9', '2.7', '3.10', '3.8', 'pypy-2.7', 'pypy-3.8']
         os: [ubuntu-latest, windows-latest]
-        python-version: ['3.9', '2.7', '3.10', '3.8']
+        python-version: ["3.11", "3.10", "3.9", "pypy-3.10", "pypy-2.7"]
         exclude:
           - os: windows-latest
-            python-version: "2.7"
+            python-version: "pypy-2.7"
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-python@v3
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
           cache: 'pip'