fix: grant id [skip ci]

Author: ManonMarchand

.zenodo.json

@@ -7,13 +7,13 @@
     "title": "Accessing and using astronomical data: a series of Jupyter notebooks tutorials",
     "grants": [
         {
-            "id": "European Union Horizon Program call INFRAEOSC-03-2020 - Grant Agreement Number 101017536"
+            "id": "101017536"
         },
         {
-            "id": "European Union’s Horizon 2020 research and innovation program under the Grant Agreement n. 824064"
+            "id": "824064"
         },
         {
-            "id": "European Union’s Horizon 2020 Programme under the AHEAD2020 project - Grant agreement Number 871158"
+            "id": "871158"
         }
     ],
     "creators": [