ci: add python 3.14 to test matrices

Now that Python 3.14 is out and will start becoming the default
OS-installed version for more and more distros, it's time to start
testing it.

Signed-off-by: Benjamin Cabé <[email protected]>

Author: kartben

.github/workflows/devicetree_checks.yml

@@ -29,7 +29,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.12', '3.13']
+        python-version: ['3.12', '3.13', '3.14.0-beta.3']
         os: [ubuntu-22.04, macos-14, windows-2022]
     steps:
     - name: checkout

.github/workflows/pylib_tests.yml

@@ -28,7 +28,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.12', '3.13']
+        python-version: ['3.12', '3.13', '3.14.0-beta.3']
         os: [ubuntu-24.04]
     steps:
     - name: checkout

.github/workflows/scripts_tests.yml

@@ -28,7 +28,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.12', '3.13']
+        python-version: ['3.12', '3.13', '3.14.0-beta.3']
         os: [ubuntu-24.04]
     steps:
       - name: checkout

.github/workflows/twister_tests.yml

@@ -35,7 +35,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.12', '3.13']
+        python-version: ['3.12', '3.13', '3.14.0-beta.3']
         os: [ubuntu-24.04]
     steps:
     - name: checkout

.github/workflows/twister_tests_blackbox.yml

@@ -26,7 +26,7 @@ jobs:
     name: Twister Black Box Tests
     strategy:
       matrix:
-        python-version: ['3.12', '3.13']
+        python-version: ['3.12', '3.13', '3.14.0-beta.3']
         os: [ubuntu-24.04, macos-14, windows-2022]
       fail-fast: false
     runs-on: ${{ matrix.os }}

.github/workflows/west_cmds.yml

@@ -32,7 +32,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.12', '3.13']
+        python-version: ['3.12', '3.13', '3.14.0-beta.3']
         os: [ubuntu-22.04, macos-14, windows-2022]
     steps:
     - name: checkout