[BOT] Update README.md

Author: github-actions[bot]

README.md

@@ -18,12 +18,12 @@
 -Dhmcl.update_source.override=https://gitee.com/Glavo/HMCL-Update/raw/main/update/stable.json
 ```
 
-## 开发版 [![](https://img.shields.io/maven-central/v/org.glavo.hmcl/hmcl-dev?label=开发版)](https://search.maven.org/artifact/org.glavo.hmcl/hmcl-dev/3.6.12.276/pom)
+## 开发版 [![](https://img.shields.io/maven-central/v/org.glavo.hmcl/hmcl-dev?label=开发版)](https://search.maven.org/artifact/org.glavo.hmcl/hmcl-dev/3.6.12.278/pom)
 
-下载开发版 v3.6.12.276:
+下载开发版 v3.6.12.278:
 
-* `.exe`：[hmcl-dev-3.6.12.276.exe](https://mirrors.cloud.tencent.com/nexus/repository/maven-public/org/glavo/hmcl/hmcl-dev/3.6.12.276/hmcl-dev-3.6.12.276.exe)
-* `.jar`：[hmcl-dev-3.6.12.276.jar](https://mirrors.cloud.tencent.com/nexus/repository/maven-public/org/glavo/hmcl/hmcl-dev/3.6.12.276/hmcl-dev-3.6.12.276.jar)
+* `.exe`：[hmcl-dev-3.6.12.278.exe](https://mirrors.cloud.tencent.com/nexus/repository/maven-public/org/glavo/hmcl/hmcl-dev/3.6.12.278/hmcl-dev-3.6.12.278.exe)
+* `.jar`：[hmcl-dev-3.6.12.278.jar](https://mirrors.cloud.tencent.com/nexus/repository/maven-public/org/glavo/hmcl/hmcl-dev/3.6.12.278/hmcl-dev-3.6.12.278.jar)
 
 你可以在环境变量 `HMCL_JAVA_OPTS` 中添加以下内容使 HMCL 通过本更新源更新：
 

update/dev.json

@@ -1 +1 @@
-{"jar":"https://maven.aliyun.com/repository/central/org/glavo/hmcl/hmcl-dev/3.6.12.276/hmcl-dev-3.6.12.276.jar","jarsha1":"6af55c5b4142fbde23faf86c0c2f9462a4887e37","version":"3.6.12.276","universal":"https://www.mcbbs.net/forum.php?mod=viewthread&tid=142335"}
+{"jar":"https://maven.aliyun.com/repository/central/org/glavo/hmcl/hmcl-dev/3.6.12.278/hmcl-dev-3.6.12.278.jar","jarsha1":"97d595ff3ebf52d8c6af9af97190caad6086f6ce","version":"3.6.12.278","universal":"https://www.mcbbs.net/forum.php?mod=viewthread&tid=142335"}