Bump jsoup from 1.11.3 to 1.15.3

Bumps [jsoup](https://github.com/jhy/jsoup) from 1.11.3 to 1.15.3.
- [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-1.11.3...jsoup-1.15.3)

---
updated-dependencies:
- dependency-name: org.jsoup:jsoup
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index 1b1428b..274abb4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -227,7 +227,7 @@
     <dependency>
       <groupId>org.jsoup</groupId>
       <artifactId>jsoup</artifactId>
-      <version>1.11.3</version>
+      <version>1.15.3</version>
       <scope>test</scope>
     </dependency>
     <!-- nullability -->