ci: upgrade Python version to 3.13 in all CI workflows

Author: metab0t

.github/workflows/doc-build.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        python-version: ["3.12"]
+        python-version: ["3.13"]
 
     env:
       PYTHON_VERSION: ${{ matrix.python-version }}

.github/workflows/linux-build.yml

@@ -20,7 +20,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, ubuntu-24.04-arm]
         # python-version: ["3.9", "3.10", "3.11", "3.12"]
-        python-version: ["3.12"]
+        python-version: ["3.13"]
 
     env:
       PYTHON_VERSION: ${{ matrix.python-version }}

.github/workflows/macos-build.yml

@@ -16,7 +16,7 @@ jobs:
       matrix:
         os: [macos-14]
         # python-version: ["3.9", "3.10", "3.11", "3.12"]
-        python-version: ["3.11", "3.12"]
+        python-version: ["3.11", "3.13"]
 
     env:
       PYTHON_VERSION: ${{ matrix.python-version }}

.github/workflows/windows-build.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.12"]
+        python-version: ["3.9", "3.13"]
 
     env:
       PYTHON_VERSION: ${{ matrix.python-version }}