CI: Update ubuntu-20.04 to ubuntu-22.04

Ubuntu 20.04 is gonna be dimissed, oldest one available will be 22.04

Author: Alberto Fanjul

.github/workflows/make-check.yml

@@ -14,7 +14,7 @@ jobs:
           - macOS-13
           - macOS-14
           - ubuntu-latest
-          - ubuntu-20.04
+          - ubuntu-22.04
         go:
           - '1.22'
     steps: