chore: Modernise a bit

pyproject.toml

@@ -0,0 +1,19 @@
+[project]
+name = "mailadmin"
+version = "0.1.0"
+readme = "README.md"
+requires-python = ">=3.13"
+dependencies = [
+    "django==4.2.*",
+    "django-auth-ldap==5.*",
+    "django-bootstrap4==25.1.*",
+    "django-extensions==4.*",
+    "django-filter==25.*",
+    "djangorestframework==3.16.*",
+    "fabric==3.*",
+    "gunicorn==20.0.*",
+    "markdown==3.*",
+    "mysqlclient==2.*",
+    "requests==2.*",
+    "sentry-sdk==1.*",
+]