[ci] Added python 3.10, removed python 3.7, switched to Ubuntu 22

Author: nemesifier

.github/workflows/ci.yml

@@ -12,15 +12,15 @@ on:
 jobs:
   build:
     name: Python==${{ matrix.python-version }}
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     strategy:
       fail-fast: false
       matrix:
         python-version:
-          - 3.7
           - 3.8
           - 3.9
+          - "3.10"
 
     steps:
       - uses: actions/checkout@v2