ci: clang: Use zephyr-runner v2

This commit updates the clang workflow to use the new zephyr-runner v2 CI
runner deployment.

It also updates the workflow to use the `ci-repo-cache` Docker image, which
includes the Zephyr repository cache, because the node level repository
cache is no longer available in the zephyr-runner v2.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>

.github/workflows/clang.yaml

@@ -9,12 +9,11 @@ concurrency:
 jobs:
   clang-build:
     if: github.repository_owner == 'zephyrproject-rtos'
-    runs-on: zephyr-runner-linux-x64-4xlarge
+    runs-on:
+      group: zephyr-runner-v2-linux-x64-4xlarge
     container:
-      image: ghcr.io/zephyrproject-rtos/ci:v0.26.7
+      image: ghcr.io/zephyrproject-rtos/ci-repo-cache:v0.26.9.20240223
       options: '--entrypoint /bin/bash'
-      volumes:
-        - /repo-cache/zephyrproject:/github/cache/zephyrproject
     strategy:
       fail-fast: false
       matrix:
@@ -34,10 +33,16 @@ jobs:
           #        GitHub comes up with a fundamental fix for this problem.
           git config --global --add safe.directory ${GITHUB_WORKSPACE}
 
+      - name: Print cloud service information
+        run: |
+          echo "ZEPHYR_RUNNER_CLOUD_PROVIDER = ${ZEPHYR_RUNNER_CLOUD_PROVIDER}"
+          echo "ZEPHYR_RUNNER_CLOUD_NODE = ${ZEPHYR_RUNNER_CLOUD_NODE}"
+          echo "ZEPHYR_RUNNER_CLOUD_POD = ${ZEPHYR_RUNNER_CLOUD_POD}"
+
       - name: Clone cached Zephyr repository
         continue-on-error: true
         run: |
-          git clone --shared /github/cache/zephyrproject/zephyr .
+          git clone --shared /repo-cache/zephyrproject/zephyr .
           git remote set-url origin ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}
 
       - name: Checkout
@@ -63,7 +68,7 @@ jobs:
           # So first retry to update, if that does not work, remove all modules
           # and start over. (Workaround until we implement more robust module
           # west caching).
-          west update --path-cache /github/cache/zephyrproject 2>&1 1> west.log || west update --path-cache /github/cache/zephyrproject 2>&1 1> west2.log || ( rm -rf ../modules ../bootloader ../tools && west update --path-cache /github/cache/zephyrproject)
+          west update --path-cache /repo-cache/zephyrproject 2>&1 1> west.log || west update --path-cache /repo-cache/zephyrproject 2>&1 1> west2.log || ( rm -rf ../modules ../bootloader ../tools && west update --path-cache /repo-cache/zephyrproject)
 
           echo "ZEPHYR_SDK_INSTALL_DIR=/opt/toolchains/zephyr-sdk-$( cat SDK_VERSION )" >> $GITHUB_ENV