Bump org.jsoup:jsoup from 1.15.3 to 1.15.4 in /app

Bumps [org.jsoup:jsoup](https://github.com/jhy/jsoup) from 1.15.3 to 1.15.4.
- [Release notes](https://github.com/jhy/jsoup/releases)
- [Changelog](https://github.com/jhy/jsoup/blob/master/CHANGES)
- [Commits](https://github.com/jhy/jsoup/compare/jsoup-1.15.3...jsoup-1.15.4)

---
updated-dependencies:
- dependency-name: org.jsoup:jsoup
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

app/build.gradle

@@ -187,7 +187,7 @@ dependencies {
     implementation('io.github.jeremyliao:live-event-bus-x:1.8.0')
 
     //规则相关
-    implementation('org.jsoup:jsoup:1.15.3')
+    implementation('org.jsoup:jsoup:1.15.4')
     implementation('com.jayway.jsonpath:json-path:2.7.0')
     implementation('cn.wanghaomiao:JsoupXpath:2.5.2')
     implementation(project(path: ':epublib'))