Remove python 3.13

Author: giswqs

.github/workflows/ubuntu.yml

@@ -13,7 +13,7 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+                python-version: ["3.9", "3.10", "3.11", "3.12"]
 
         env:
             PLANET_API_KEY: ${{ secrets.PLANET_API_KEY }}