Codes are generated by openapi generator (#1410)

line/line-openapi#65

In the Messaging API, we've added the following values as conditions for
filtering the age range of recipients in the [demographic filter
objects](https://developers.line.biz/en/reference/messaging-api/#narrowcast-demographic-filter)
of [narrowcast
messages](https://developers.line.biz/en/reference/messaging-api/#send-narrowcast-message):

- `age_55`
- `age_60`
- `age_65`
- `age_70`

Until now, the upper limit was `age_50`, so it wasn't possible to filter
ages over 50 in detail. By specifying the added age ranges, you can now
filter recipients more flexibly than before.

For example, the following is a demographic filter object that filters
by age 50 and older but less than 60:

```json
{
  "type": "age",
  "gte": "age_50",
  "lt": "age_60"
}
```

news:
https://developers.line.biz/en/news/2024/08/26/age-filter-subdivision/

Co-authored-by: github-actions <[email protected]>

clients/line-bot-messaging-api-client/src/main/java/com/linecorp/bot/messaging/model/AgeDemographic.java

@@ -52,6 +52,18 @@ public enum AgeDemographic {
   @JsonProperty("age_50")
   AGE_50,
 
+  @JsonProperty("age_55")
+  AGE_55,
+
+  @JsonProperty("age_60")
+  AGE_60,
+
+  @JsonProperty("age_65")
+  AGE_65,
+
+  @JsonProperty("age_70")
+  AGE_70,
+
   @JsonEnumDefaultValue
   UNDEFINED;
 
@@ -66,6 +78,10 @@ public String toValue() {
       case AGE_40 -> "age_40";
       case AGE_45 -> "age_45";
       case AGE_50 -> "age_50";
+      case AGE_55 -> "age_55";
+      case AGE_60 -> "age_60";
+      case AGE_65 -> "age_65";
+      case AGE_70 -> "age_70";
 
       default -> "UNDEFINED";
     };