Add Ubuntu 24.04 and remove Ubuntu 20.04

Signed-off-by: Irene Bandera <irenebandera@eprosima.com>

Author: irenebm

.github/workflows/reusable-workflow.yml

@@ -1,7 +1,7 @@
 # Reusable workflow to run the following jobs:
 #
 #   - multiplatform-tests
-#     - [ ubuntu-22.04 | ubuntu-20.04 | windows-2019 | windows-2022 ]
+#     - [ ubuntu-22.04 | ubuntu-24.04 | windows-2019 | windows-2022 ]
 #     - [ Debug | Release ]
 #     - execute tests in different versions of ubuntu with different build types
 #
@@ -77,8 +77,8 @@ jobs:
           - Release
           - Debug
         os:
-          - ubuntu-20.04
           - ubuntu-22.04
+          - ubuntu-24.04
           - windows-2019
           - windows-2022