ci: add 3.12 to the test matrix, remove 3.7

Author: madebr

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                py: ['3.7', '3.8', '3.9', '3.10', '3.11']
+                py: ['3.8', '3.9', '3.10', '3.11', '3.12']
                 os: ['ubuntu-latest', 'windows-latest', 'macos-latest']
         runs-on: ${{ matrix.os }}
         steps: