Bump CI runner to Ubuntu 22.04 (#1963) (#1969)

Signed-off-by: Antón Casas <[email protected]>
(cherry picked from commit d54bc03)

Co-authored-by: Antón Casas <[email protected]>

Author: mergify[bot]

.github/workflows/ci.yml

@@ -8,8 +8,8 @@ on:
 jobs:
 
     micro_ros_arduino:
-        runs-on: ubuntu-20.04
-        container: ubuntu:20.04
+        runs-on: ubuntu-22.04
+        container: ubuntu:22.04
 
         steps:
         - uses: actions/checkout@v4