ci: bump ubuntu version

Bump actions to use ubuntu-24.04 for fixing the following GitHub
warning:

    The Ubuntu 20.04 Actions runner image will begin deprecation
    on 2025-02-01.

Part of #TNTP-1918

Author: patapenka-alexey

.github/workflows/packing.yml

@@ -20,7 +20,7 @@ jobs:
     if: (github.event_name == 'push') ||
       (github.event_name == 'pull_request' &&
         github.event.pull_request.head.repo.full_name != github.repository)
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     strategy:
       fail-fast: false
@@ -65,7 +65,7 @@ jobs:
     if: (github.event_name == 'push') ||
       (github.event_name == 'pull_request' &&
         github.event.pull_request.head.repo.full_name != github.repository)
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     strategy:
       fail-fast: false
@@ -188,7 +188,7 @@ jobs:
       - run_tests_pip_package_linux
       - run_tests_pip_package_windows
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     strategy:
       fail-fast: false
@@ -226,7 +226,7 @@ jobs:
     if: (github.event_name == 'push') ||
       (github.event_name == 'pull_request' &&
         github.event.pull_request.head.repo.full_name != github.repository)
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     container:
       image: ${{ matrix.target.os }}:${{ matrix.target.dist }}
@@ -293,7 +293,7 @@ jobs:
     if: (github.event_name == 'push') ||
       (github.event_name == 'pull_request' &&
         github.event.pull_request.head.repo.full_name != github.repository)
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     container:
       image: ${{ matrix.target.os }}:${{ matrix.target.dist }}
@@ -354,7 +354,7 @@ jobs:
     needs:
       - run_tests_rpm
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     strategy:
       fail-fast: false
@@ -404,7 +404,7 @@ jobs:
     if: (github.event_name == 'push') ||
       (github.event_name == 'pull_request' &&
         github.event.pull_request.head.repo.full_name != github.repository)
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     strategy:
       fail-fast: false
@@ -453,7 +453,7 @@ jobs:
     if: (github.event_name == 'push') ||
       (github.event_name == 'pull_request' &&
         github.event.pull_request.head.repo.full_name != github.repository)
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     container:
       image: ${{ matrix.target.os }}:${{ matrix.target.dist }}
@@ -522,7 +522,7 @@ jobs:
     needs:
       - run_tests_deb
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     strategy:
       fail-fast: false

.github/workflows/reusable_testing.yml

@@ -11,7 +11,7 @@ on:
 
 jobs:
   run_tests:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
       - name: Clone the tarantool-python connector
         uses: actions/checkout@v4

.github/workflows/testing.yml

@@ -21,7 +21,7 @@ jobs:
       (github.event_name == 'pull_request' &&
         github.event.pull_request.head.repo.full_name != github.repository)
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     strategy:
       fail-fast: false
@@ -142,7 +142,7 @@ jobs:
         github.event.pull_request.head.repo.full_name != github.repository &&
         github.event.label.name == 'full-ci')
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     strategy:
       fail-fast: false
@@ -215,7 +215,7 @@ jobs:
     if: (github.event_name == 'push') ||
       (github.event_name == 'pull_request' &&
         github.event.pull_request.head.repo.full_name != github.repository)
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     strategy:
       fail-fast: false