docs: fix incorrect usage of tools and defaultTools (#3533)

Auto-cherry-pick to 1.0.x

Signed-off-by: Jemin Huh <hjm1980@gmail.com>

Author: JM-Lab

spring-ai-docs/src/main/antora/modules/ROOT/pages/api/chat/bedrock-converse.adoc

@@ -168,7 +168,7 @@ public Function<Request, Response> weatherFunction() {
 
 String response = ChatClient.create(this.chatModel)
         .prompt("What's the weather like in Boston?")
-        .tools("weatherFunction")
+        .toolNames("weatherFunction")
         .inputType(Request.class)
         .call()
         .content();

spring-ai-docs/src/main/antora/modules/ROOT/pages/api/chat/vertexai-gemini-chat.adoc

@@ -165,7 +165,7 @@ public Function<Request, Response> weatherFunction() {
 
 String response = ChatClient.create(this.chatModel)
         .prompt("What's the weather like in Boston?")
-        .tools("weatherFunction")
+        .toolNames("weatherFunction")
         .inputType(Request.class)
         .call()
         .content();

spring-ai-docs/src/main/antora/modules/ROOT/pages/api/tools.adoc

@@ -641,7 +641,7 @@ WARNING: Default tools are shared across all the chat requests performed by all
 ----
 ChatModel chatModel = ...
 ChatClient chatClient = ChatClient.builder(chatModel)
-    .defaultTools("currentWeather")
+    .defaultToolNames("currentWeather")
     .build();
 ----