fixed errenous jazzy references

Dockerfile

@@ -1,4 +1,4 @@
-FROM osrf/ros:jazzy-desktop-full AS base-ros-nvim
+FROM osrf/ros:iron-desktop-full AS base-ros-nvim
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update \
     && apt-get -y install --no-install-recommends apt-utils dialog 2>&1 \
@@ -31,7 +31,7 @@ RUN apt-get update \
     
 
 FROM base-ros-nvim AS base-ros-nvim-graphics
-ARG ROS_DISTR=jazzy
+ARG ROS_DISTR=iron
 ENV ROS_DISTR=$ROS_DISTR
 ENV NVIDIA_VISIBLE_DEVICES \
     ${NVIDIA_VISIBLE_DEVICES:-all}
@@ -72,7 +72,7 @@ RUN apt-get update \
     ros-${ROS_DISTR}-topic-tools \
     ros-${ROS_DISTR}-rviz-2d-overlay-plugins \
     ros-${ROS_DISTR}-simple-launch \
-    ros-${ROS_DISTR}-slider-publisher \ # used for gripper tests
+    ros-${ROS_DISTR}-slider-publisher \
     pre-commit \
     # && pip3 install transforms3d \
 #   && rosdep install --from-paths /ros2_underlay/src -y --ignore-src \

build

@@ -1,4 +1,4 @@
 #!/usr/bin/bash
 
-docker pull osrf/ros:jazzy-desktop-full
+docker pull osrf/ros:iron-desktop-full
 docker compose build --pull