fix(build-and-push): pass docker context as positional arg to buildx create

--context is not supported on this buildx version; the context name is a
positional [CONTEXT|ENDPOINT] argument

build-and-push/action.yaml

@@ -91,7 +91,7 @@ runs:
         # instance* named remote-builder, not just a context. Create it from the
         # SSH context so it resolves to the remote engine over SSH.
         docker buildx rm -f remote-builder 2>/dev/null || true
-        docker buildx create --name remote-builder --context remote-builder --use
+        docker buildx create --name remote-builder --use remote-builder
         docker buildx inspect --bootstrap
 
     - name: Generate tags list