Bump com.discord4j:discord4j-core from 3.2.6 to 3.2.9 in /symja_android_library (#1207)

Bump com.discord4j:discord4j-core in /symja_android_library

Bumps [com.discord4j:discord4j-core](https://github.com/Discord4J/Discord4J) from 3.2.6 to 3.2.9.
- [Release notes](https://github.com/Discord4J/Discord4J/releases)
- [Commits](Discord4J/Discord4J@3.2.6...3.2.9)

---
updated-dependencies:
- dependency-name: com.discord4j:discord4j-core
  dependency-version: 3.2.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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symja_android_library/matheclipse-discord/pom.xml

@@ -37,7 +37,7 @@
 		<dependency>
 			<groupId>com.discord4j</groupId>
 			<artifactId>discord4j-core</artifactId>
-			<version>3.2.6</version>
+			<version>3.2.9</version>
 		</dependency>
 		<dependency>
 			<groupId>${project.groupId}</groupId>