ci: update workflows to use Ubuntu 24.04 instead of 22.04

Update the few workflows that were testing against Ubuntu 22.04 since
current LTS is 24.04 and all other workflows (including anything using
our Docker image) are already using 24.04.

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

Author: kartben

.github/workflows/devicetree_checks.yml

@@ -30,7 +30,7 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.10', '3.11', '3.12', '3.13']
-        os: [ubuntu-22.04, macos-14, windows-2022]
+        os: [ubuntu-24.04, macos-14, windows-2022]
     steps:
     - name: checkout
       uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

.github/workflows/hello_world_multiplatform.yaml

@@ -28,7 +28,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-22.04, ubuntu-24.04, ubuntu-24.04-arm, macos-14, windows-2022]
+        os: [ubuntu-24.04, ubuntu-24.04-arm, macos-14, windows-2022]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout

.github/workflows/west_cmds.yml

@@ -33,7 +33,7 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.10', '3.11', '3.12', '3.13']
-        os: [ubuntu-22.04, macos-14, windows-2022]
+        os: [ubuntu-24.04, macos-14, windows-2022]
     steps:
     - name: checkout
       uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2