feat: update version to 5.2.9 and adjust README and release configuration

Author: zhanq

.github/workflows/release.yml

@@ -3,7 +3,7 @@ name: Release to Maven Central
 on:
   push:
     tags:
-      - 'v*'  # 当推送以 v 开头的标签时触发，如 v5.2.8
+      - 'v*'  # 当推送以 v 开头的标签时触发，如 v5.2.9
 
 permissions:
   contents: read
@@ -57,7 +57,8 @@ jobs:
         
     - name: 发布到 Maven Central
       run: |
-        mvn clean deploy -P release -pl jiguang-sdk -DskipTests
+        echo "开始发布到 Maven Central Portal..."
+        mvn clean deploy -P release -pl jiguang-sdk -DskipTests -X
       env:
         MAVEN_USERNAME: ${{ secrets.CENTRAL_USERNAME }}
         MAVEN_PASSWORD: ${{ secrets.CENTRAL_TOKEN }}

README.md

@@ -15,13 +15,13 @@
 ## 1. 集成
 引入sdk包
 ```xml
-<!--以5.2.8版本为例-->
+<!--以5.2.9版本为例-->
 <dependencies>
         <!-- jiguang-sdk -->
         <dependency>
             <groupId>io.github.jpush</groupId>
             <artifactId>jiguang-sdk</artifactId>
-            <version>5.2.8</version>
+            <version>5.2.9</version>
         </dependency>
 </dependencies>
 ```

example-for-spring/pom.xml

@@ -13,7 +13,7 @@
 
     <groupId>io.github.jpush</groupId>
     <artifactId>example-for-spring</artifactId>
-    <version>5.2.8</version>
+    <version>5.2.9</version>
 
     <properties>
         <maven.compiler.source>8</maven.compiler.source>
@@ -26,7 +26,7 @@
         <dependency>
             <groupId>io.github.jpush</groupId>
             <artifactId>jiguang-sdk</artifactId>
-            <version>5.2.8</version>
+            <version>5.2.9</version>
         </dependency>
         <!-- lombok -->
         <dependency>

jiguang-sdk/pom.xml

@@ -7,13 +7,13 @@
     <parent>
         <groupId>io.github.jpush</groupId>
         <artifactId>jiguang-sdk-java</artifactId>
-        <version>5.2.8</version>
+        <version>5.2.9</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
     <groupId>io.github.jpush</groupId>
     <artifactId>jiguang-sdk</artifactId>
-    <version>5.2.8</version>
+    <version>5.2.9</version>
     <packaging>jar</packaging>
 
     <properties>

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>io.github.jpush</groupId>
     <artifactId>jiguang-sdk-java</artifactId>
-    <version>5.2.8</version>
+    <version>5.2.9</version>
     <packaging>pom</packaging>
 
     <name>Jiguang SDK For Rest Api</name>