Update docker/dockerfile Docker tag to v1.10

| datasource | package           | from | to   |
| ---------- | ----------------- | ---- | ---- |
| docker     | docker/dockerfile | 1.9  | 1.10 |


Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

docker/Dockerfile

@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.9
+# syntax=docker/dockerfile:1.10
 FROM debian:12-slim
 
 LABEL maintainer="NGINX Docker Maintainers <[email protected]>"