[ci] Put image last in docker invocation!

.github/workflows/root-ci-config/build_utils.py

@@ -61,7 +61,7 @@ def print(self) -> None:
             if self.image:
                 print(f"""\
 Grab the image:
-$ docker run -it {self.image} {' '.join(self.docker_opts)}
+$ docker run {' '.join(self.docker_opts)} -it {self.image}
 Then:
 """)
             print(self.trace)