merge: resolve master into backend update automation

Keep the backend-update workflow's expanded CI triggering while absorbing master's workflow_dispatch additions and docker/setup-qemu-action updates.

Co-authored-by: Miles Cranmer <miles.cranmer@gmail.com>

Author: MilesCranmerBot

.github/workflows/CI_docker_large_nightly.yml

@@ -27,7 +27,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
+        uses: docker/setup-qemu-action@v4
         with:
           platforms: all
       - name: Build docker

.github/workflows/docker_deploy.yml

@@ -56,7 +56,7 @@ jobs:
             type=sha
             type=raw,value=latest,enable={{is_default_branch}}
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
+        uses: docker/setup-qemu-action@v4
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Build and push