revert ubuntu version to 22.04

.github/workflows/cd.yml

@@ -30,7 +30,7 @@ jobs:
   # Job to test if a new version is ready to be released
   deliverability:
     name: Check if a new version must be released
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
     # The job is run only if the CI workflow succeeded
     if: github.event.workflow_run.conclusion == 'success'
     outputs:
@@ -68,7 +68,7 @@ jobs:
 
   release:
     name: Release a new version of the docker image
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
     needs: deliverability
     if: needs.deliverability.outputs.delivery == 'allowed'
     steps:
@@ -118,7 +118,7 @@ jobs:
 
   push_to_registry:
     name: Push Docker image to Docker Hub
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
     needs: deliverability
     if: needs.deliverability.outputs.delivery == 'allowed'
     steps:
@@ -189,7 +189,7 @@ jobs:
 
   close_milestone:
     name: Close the milestone
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
     needs:
       - deliverability
       - release

.github/workflows/ci.yml

@@ -31,7 +31,7 @@ jobs:
   # Job that builds the image and upload it as an artifact
   build:
     name: Build the docker image
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
       - name: Build docker image
@@ -46,7 +46,7 @@ jobs:
   # Jobs that test the image and the embedded tools
   test:
     name: Test the Docker image
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
     needs: build
     steps:
       - uses: actions/checkout@v2