tools/docker: Fix building docker image and dir restructuring

.github/workflows/docker-image.yml

@@ -76,8 +76,7 @@ jobs:
       - name: Build and push
         uses: docker/build-push-action@v5
         with:
-          context: tools/docker
+          context: tools/docker/matter_builds
-          file: tools/docker/matter-builds
           push: true
           tags: |
             ${{ env.DOCKERHUB_REPO }}:${{ env.TAG_NAME }}

tools/docker/matter_builds/Dockerfile

@@ -1,4 +1,8 @@
-ARG VERSION=latest
+# The chip-build image is moved to Ubuntu 24.04 for Matter v1.4 onwards.
+# For Matter v1.3 and earlier, it uses Ubuntu 22.04.
+# Therefore, pinning this to version:54 for building Docker images.
+# TODO: Move to latest when updating submodule
+ARG VERSION=54
 FROM ghcr.io/project-chip/chip-build:${VERSION} as build
 
 # Use IDF_CHECKOUT_REF to specify a tag, a branch or a specific commit ID.