fixup! (wip)[actions] trigger build workflow after docker workflow

.github/workflows/build.yml

@@ -29,9 +29,7 @@
 name: Build
 
 on:
-  workflow_run:
-    workflows: [Publish to DockerHub]
-    types: [completed]
+  workflow_call:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || (github.repository == 'openthread/ot-efr32' && github.run_id) || github.ref }}

.github/workflows/docker.yml

@@ -70,6 +70,8 @@ jobs:
     - name: Build and export to Docker context
       uses: docker/build-push-action@v5
       with:
+        build-args: |
+          BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
         context: .
         file: docker/Dockerfile
         load: true
@@ -146,7 +148,7 @@ jobs:
       - name: Load Docker image
         run: |
           docker load --input ${{ steps.download.outputs.download-path }}/${{ env.DOCKER_IMAGE_ARTIFACT_NAME }}
-          docker image ls -a
+          docker inspect ${{ env.SHA_TAG }}
 
       - name: Push Docker image
         run: |
@@ -157,3 +159,8 @@ jobs:
         run: |
           docker tag ${{ env.SHA_TAG }} ${{ env.LATEST_TAG }}
           docker push ${{ env.LATEST_TAG }}
+
+  trigger_build:
+    name: Trigger Build Workflow
+    uses: ./.github/workflows/build.yml
+    needs: [publish]

docker/Dockerfile

@@ -1,4 +1,6 @@
 ARG BASE_IMAGE='ubuntu:22.04'
+ARG BUILD_DATE
+
 FROM ${BASE_IMAGE} as base
 
 ENV TZ="America/New_York"
@@ -26,7 +28,10 @@ RUN ./script/bootstrap python
 
 # ==============================================================================
 
+# Label the build date before downloading slc to force slc to always be downloaded during a docker build
+
 FROM base AS ot-efr32-dev
+LABEL build_date=${BUILD_DATE}
 
 COPY  ./script/bootstrap_silabs \
       ./script/