Add ad-astra planets generator (#799)

* Add ad-astra generator

* Fix file path and min/max version

* Actually fix path 🤦

src/config.json

@@ -704,6 +704,16 @@
       "minVersion": "1.21.2",
       "wiki": "https://minecraft.wiki/w/Shader#Post-processing_effects"
     },
+    {
+      "id": "ad_astra:planets",
+      "url": "ad-astra/planets",
+      "path": "planets",
+      "tags": ["partners"],
+      "dependency": "ad_astra",
+      "minVersion": "1.20",
+      "maxVersion": "1.20.3",
+      "wiki": "https://ad-astra.terrarium.wiki/datapack.html"
+    },
     {
       "id": "fabric:fabric_mod_json",
       "url": "fabric/fabric-mod-json",