fix: rename google's 'kind' to 'palm'

Author: bevzzz

src/main/java/io/weaviate/client6/v1/api/collections/Generative.java

@@ -38,7 +38,7 @@ public enum Kind implements JsonEnum<Kind> {
     COHERE("generative-cohere"),
     DATABRICKS("generative-databricks"),
     FRIENDLIAI("generative-friendliai"),
-    GOOGLE("generative-google"),
+    GOOGLE("generative-palm"),
     MISTRAL("generative-mistral"),
     NVIDIA("generative-nvidia"),
     OLLAMA("generative-ollama"),