Fix labels of two winners. (2nd try)

Anders Kaare Straadt had two labels, one of them wrong.

The fix is the following:
anders -> macke
straat -> fix authorship

author/Anders_Kaare_Straadt.json

@@ -15,7 +15,7 @@
     "affiliation" : null,
     "winning_entry_set" : [
         {
-            "entry_id" : "2024_anders"
+            "entry_id" : "2024_straadt"
         }
     ]
 }

author/Sebastian_Macke.json

@@ -15,7 +15,7 @@
     "affiliation" : null,
     "winning_entry_set" : [
         {
-            "entry_id" : "2024_straadt"
+            "entry_id" : "2024_macke",
         }
     ]
 }