Update Python versions in GitHub Actions workflow (#106)

Signed-off-by: Erdem Demir <35841628+erdemdmr@users.noreply.github.com>

Author: erdemdmr

.github/workflows/github_pull_request.yml

@@ -14,7 +14,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ['3.7', '3.8']
+        python-version: ['3.12', '3.13', '3.14']
 
     steps:
     - uses: actions/checkout@v3