GHA: Update runner images

.github/workflows/cmake-format.yml

@@ -4,7 +4,7 @@ on: [push]
 
 jobs:
   cmake-format-job:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
       - name: Install cmakelang for cmake-format
         run: |

.github/workflows/python-linting.yml

@@ -4,7 +4,7 @@ on: [push, pull_request]
 
 jobs:
   lint:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5

.github/workflows/spell-check.yml

@@ -5,7 +5,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
       - uses: sobolevn/misspell-fixer-action@master