Test basemap-data and basemap-data-hires also in Python 3.10

Author: molinav

.github/workflows/basemap-data-hires.yml

@@ -61,7 +61,8 @@ jobs:
     strategy:
       matrix:
         python-version:
-          ["2.6", "2.7", "3.2", "3.3", "3.4", "3.5", "3.6", "3.7", "3.8", "3.9"]
+          ["2.6", "2.7", "3.2", "3.3", "3.4", "3.5", "3.6", "3.7", "3.8",
+           "3.9", "3.10"]
       max-parallel: 3
       fail-fast: false
     needs: build

.github/workflows/basemap-data.yml

@@ -61,7 +61,8 @@ jobs:
     strategy:
       matrix:
         python-version:
-          ["2.6", "2.7", "3.2", "3.3", "3.4", "3.5", "3.6", "3.7", "3.8", "3.9"]
+          ["2.6", "2.7", "3.2", "3.3", "3.4", "3.5", "3.6", "3.7", "3.8",
+           "3.9", "3.10"]
       max-parallel: 3
       fail-fast: false
     needs: build