Fix bad tag in CI

Author: tsmith023

.github/workflows/main.yaml

@@ -8,7 +8,7 @@ on:
 
 env:
   WEAVIATE_124: 1.24.26
-  WEAVIATE_125: 1.25.29
+  WEAVIATE_125: 1.25.28
   WEAVIATE_126: 1.26.13
   WEAVIATE_127: 1.27.9
   WEAVIATE_128: 1.28.2