Run Zephyr tests in their own workflow

.github/workflows/build.yml

@@ -100,6 +100,12 @@ jobs:
     with:
       cp-version: ${{ needs.scheduler.outputs.cp-version }}
 
+  zephyr-tests:
+    needs: scheduler
+    uses: ./.github/workflows/run-zephyr-tests.yml
+    with:
+      cp-version: ${{ needs.scheduler.outputs.cp-version }}
+
   mpy-cross:
     needs: scheduler
     if: needs.scheduler.outputs.ports != '{}'

.github/workflows/run-tests.yml

@@ -65,41 +65,3 @@ jobs:
         if: matrix.test == 'all'
         run: ./run-natmodtests.py extmod/{heapq*,random*,re*}.py
         working-directory: tests
-
-  zephyr:
-    runs-on: ubuntu-24.04
-    strategy:
-      fail-fast: false
-    env:
-      CP_VERSION: ${{ inputs.cp-version }}
-    steps:
-      - name: Set up repository
-        uses: actions/checkout@v6
-        with:
-          submodules: false
-          show-progress: false
-          fetch-depth: 1
-      - name: Set up python
-        uses: actions/setup-python@v6
-        with:
-          python-version: 3.13
-      - name: Set up Zephyr
-        uses: ./.github/actions/deps/ports/zephyr-cp
-      - name: Set up submodules
-        id: set-up-submodules
-        uses: ./.github/actions/deps/submodules
-        with:
-          target: zephyr-cp
-      - name: Set up external
-        uses: ./.github/actions/deps/external
-      - name: Build native sim target
-        run: make -C ports/zephyr-cp -j2 BOARD=native_native_sim
-      - name: Build bsim
-        run: make -j 2 everything
-        working-directory: ports/zephyr-cp/tools/bsim
-      - name: Build native_nrf5340bsim
-        run: make -C ports/zephyr-cp -j2 BOARD=native_nrf5340bsim
-      - name: Build native_nrf54lm20bsim
-        run: make -C ports/zephyr-cp -j2 BOARD=native_nrf54lm20bsim
-      - name: Run Zephyr tests
-        run: make -C ports/zephyr-cp test

.github/workflows/run-zephyr-tests.yml

@@ -0,0 +1,47 @@
+name: Run Zephyr tests
+
+on:
+  workflow_call:
+    inputs:
+      cp-version:
+        required: true
+        type: string
+
+jobs:
+  zephyr:
+    runs-on: ubuntu-24.04
+    strategy:
+      fail-fast: false
+    env:
+      CP_VERSION: ${{ inputs.cp-version }}
+    steps:
+      - name: Set up repository
+        uses: actions/checkout@v6
+        with:
+          submodules: false
+          show-progress: false
+          fetch-depth: 1
+      - name: Set up python
+        uses: actions/setup-python@v6
+        with:
+          python-version: 3.13
+      - name: Set up Zephyr
+        uses: ./.github/actions/deps/ports/zephyr-cp
+      - name: Set up submodules
+        id: set-up-submodules
+        uses: ./.github/actions/deps/submodules
+        with:
+          target: zephyr-cp
+      - name: Set up external
+        uses: ./.github/actions/deps/external
+      - name: Build native sim target
+        run: make -C ports/zephyr-cp -j2 BOARD=native_native_sim
+      - name: Build bsim
+        run: make -j 2 everything
+        working-directory: ports/zephyr-cp/tools/bsim
+      - name: Build native_nrf5340bsim
+        run: make -C ports/zephyr-cp -j2 BOARD=native_nrf5340bsim
+      - name: Build native_nrf54lm20bsim
+        run: make -C ports/zephyr-cp -j2 BOARD=native_nrf54lm20bsim
+      - name: Run Zephyr tests
+        run: make -C ports/zephyr-cp test

tools/ci_set_matrix.py

@@ -51,6 +51,7 @@
     "tools/ci_check_duplicate_usb_vid_pid.py",
     "tools/ci_set_matrix.py",
     ".github/workflows/run-tests.yml",
+    ".github/workflows/run-zephyr-tests.yml",
     ".github/workflows/build-board-custom.yml",
     ".github/workflows/bundle_cron.yml",
     ".github/workflows/create-website-pr.yml",