Fixed typo in Bedrock Titan chat option exception

Author: pradipkhomane

models/spring-ai-bedrock/src/main/java/org/springframework/ai/bedrock/titan/BedrockTitanChatOptions.java

@@ -121,11 +121,11 @@ public void setStopSequences(List<String> stopSequences) {
 
 	@Override
 	public Integer getTopK() {
-		throw new UnsupportedOperationException("Bedrock Titian Chat does not support the 'TopK' option.");
+		throw new UnsupportedOperationException("Bedrock Titan Chat does not support the 'TopK' option.");
 	}
 
 	public void setTopK(Integer topK) {
-		throw new UnsupportedOperationException("Bedrock Titian Chat does not support the 'TopK' option.'");
+		throw new UnsupportedOperationException("Bedrock Titan Chat does not support the 'TopK' option.'");
 	}
 
 }