Add missing setup tasks

Signed-off-by: trivernis <trivernis@protonmail.com>

.github/workflows/docker.yml

@@ -13,6 +13,14 @@ jobs:
       - name: Copy Repo Files
         uses: actions/checkout@master
 
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
       -
         name: Login to GitHub Container Registry
         uses: docker/login-action@v1