change CI file

Author: facontidavide

.github/workflows/ros2.yaml

@@ -13,7 +13,7 @@ jobs:
       matrix:
         env:
           - {ROS_DISTRO: humble, ROS_REPO: main}
-          - {ROS_DISTRO: iron, ROS_REPO: main}
+          - {ROS_DISTRO: jazzy, ROS_REPO: main}
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3