chore: update dependencies and deprecate Python 3.9 (#12)

Author: IdoKendo

.github/workflows/publish.yaml

@@ -17,7 +17,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v2
         with:
-          python-version: "3.12"
+          python-version: "3.13"
 
       - name: Install poetry and dependencies
         run: |

changelog.d/20251001_190326_ryuusuke.rst

@@ -0,0 +1,9 @@
+Deprecated
+----------
+
+- Support for Python 3.9 will be removed in the next version.
+
+Security
+--------
+
+- Updated dependency lockfile