ci: use ubuntu-22 for Linux runner

Author: gnikit

.github/workflows/wheel.yml

@@ -11,7 +11,7 @@ jobs:
       matrix:
         sys:
           - { os: windows-2022, shell: "msys2 {0}" }
-          - { os: ubuntu-20.04, shell: bash }
+          - { os: ubuntu-22.04, shell: bash }
           - { os: macos-14, shell: bash }
           - { os: macos-13, shell: bash } # Intel runner
     defaults: