Set required python version to >=3.12

Author: diegomartinez2

.github/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v4
       with:
-        python-version: 3.9
+        python-version: 3.12
 
     - name: Install system dependencies
       run: |

pyproject.toml

@@ -9,7 +9,7 @@ description = "Python implementation of the sscha code"
 authors = [{name = "Lorenzo Monacelli"}] # Put here email
 readme = "README.md"
 license = {file = "LICENSE.txt"}
-requires-python = ">=3.8" # Ajusta según las versiones de Python que soportes
+requires-python = ">=3.12" # Ajusta según las versiones de Python que soportes
 dependencies = [
     "numpy",
     "ase",