Remove the test for py3.9

Author: Mr-Milk

.github/workflows/build.yaml

@@ -20,7 +20,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.10', '3.11', '3.12', '3.13']
 
     runs-on: ${{ matrix.os }}
     defaults: