Fix Python versions for Github action (3.9 to 3.13) (#33)

Author: lucduron

.github/workflows/pythonpackage.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       max-parallel: 5
       matrix:
-        python-version: [3.7, 3.8, 3.9, "3.10", 3.11]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
     - uses: actions/checkout@v2

README.md

@@ -3,7 +3,7 @@
 
 ![Python package](https://github.com/CNR-Engineering/PyTelTools/workflows/Python%20package/badge.svg)
 
-Tested versions: 3.7, 3.8, 3.9, 3.10 et 3.11.
+Tested versions: 3.9, 3.10, 3.11, 3.12 and 3.13.
 
 * [Documentations](#documentations)
 * [Installation and requirements](#installation-and-requirements)