こういうGithub Actionがあるとする

name: Deploy
on: push
jobs:
  test:
    name: test
    runs-on: Ubuntu-20.04
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - uses: google-github-actions/auth@v0
        with:
          project_id: your-own-project
          credentials_json: ${{ secrets.GCP_SA_KEY }}
      - run: gcloud auth configure-docker
      - uses: docker/setup-buildx-action@v2
      - uses: docker/build-push-action@v3
        with:
          tags: your-own-project
          cache-from: type=registry,ref=asia.gcr.io/your-own-project/your-own-project-cache
          cache-to: type=registry,ref=asia.gcr.io/your-own-project/your-own-project-cache,mode=max

このActionを実行するとこういうエラーが出る

buildx failed with: error: failed to solve: error writing manifest blob: failed commit on ref "sha256:b436d0ae59aa712572ed25eabccb2fbda5c32b6f74ba03358732229cbefa0647": unexpected status: 400 Bad Request

解決策

Container RegistryではなくArtifact Registryを使え