.github/workflows: switch images to Ubuntu noble

Ubuntu focal (20.4) images are not supported for Github Actions
since 2025-04-15.

References: actions/runner-images#11101

Author: wferi

.github/workflows/bump_version.yml

@@ -5,7 +5,7 @@ on: workflow_dispatch
 jobs:
   release:
     name: Bump Version
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v3
     - run: |

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   lint:
     name: Coding style and linting checks
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v3
     - run: |
@@ -22,7 +22,7 @@ jobs:
 
   test:
     name: Test with docker image ${{ matrix.docker-image }}
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
         docker-image:

.github/workflows/release.yml

@@ -5,7 +5,7 @@ on: workflow_dispatch
 jobs:
   release:
     name: Release
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v3
     - run: |