feat: Update Python versions in GitHub Actions workflow and README.md

Author: Simatwa

.github/workflows/python-test.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.13", "3.12", "3.11", "3.10", "3.9"]
+        python-version: ["3.13", "3.12"]
 
     steps:
     - uses: actions/checkout@v3

README.md

@@ -13,7 +13,7 @@ Python tool designed to interact with SQLite databases via command-line interfac
 
 # Pre-requisite
 
-- [x] [Python>=3.9](https://python.org) *(optional)*
+- [x] [Python>=3.12](https://python.org) *(optional)*
 
 # Installation and Usage