ci(python): Upgrade Pythons and add 3.13 series

Author: asyrjasalo

.github/workflows/atest.yml

@@ -2,7 +2,7 @@ name: Acceptance tests
 
 on:
   push:
-    branches: [master,debug]
+    branches: [master]
   pull_request:
     branches: [master]
 
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.9.19, 3.10.14, 3.11.9, 3.12.4]
+        python-version: [3.9.21, 3.10.16, 3.11.11, 3.12.9, 3.13.2]
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/build.yml

@@ -2,7 +2,7 @@ name: Build packages
 
 on:
   push:
-    branches: [master,debug]
+    branches: [master]
   pull_request:
     branches: [master]
 
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.9.19, 3.10.14, 3.11.9, 3.12.4]
+        python-version: [3.9.21, 3.10.16, 3.11.11, 3.12.9, 3.13.2]
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/test.yml

@@ -2,7 +2,7 @@ name: Unit tests
 
 on:
   push:
-    branches: [master,debug]
+    branches: [master]
   pull_request:
     branches: [master]
 
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.9.19, 3.10.14, 3.11.9, 3.12.4]
+        python-version: [3.9.21, 3.10.16, 3.11.11, 3.12.9, 3.13.2]
 
     steps:
       - uses: actions/checkout@v4