fix: remove limit if collection pagination is not enabled

Author: jlahovnik

stac_fastapi/eodag/core.py

@@ -240,6 +240,9 @@ async def all_collections(
             else:
                 raise HTTPException(status_code=400, detail=f"Unsupported filter_lang {filter_lang}")
 
+        if not self.extension_is_enabled("OffsetPaginationExtension"):
+            limit = None
+
         collections = cast(
             CollectionsList,
             await asyncio.to_thread(