[BUG] jsonschema maximum 提示文案错误

### 问题描述
maximum not match, expect >= %s, but %s

### 环境信息
- 版本信息：Fastjson2 2.0.40

### 重现步骤
```java
final JSONSchema jsonSchema = JSONSchema.of(JSONObject.of("type", "integer", "maximum", 10));
jsonSchema.assertValidate(11);
```

### 期待的正确结果
maximum not match, expect <= 10, but 11

### 相关日志输出
com.alibaba.fastjson2.JSONSchemaValidException: maximum not match, expect >= 10, but 11
at com.alibaba.fastjson2.schema.JSONSchema.assertValidate(JSONSchema.java:814)

Start at JSONSchema.java line 814, where the reported validation exception is raised. Run the provided Java reproduction with maximum 10 and value 11, then correct the maximum message so it reports the expected <= 10 relation and confirms the actual value 11.

Written by the indexing model from the issue text.