chore(deps): bump net.md-5:bungeecord-api from 1.21-R0.1 to 1.21-R0.4

Bumps [net.md-5:bungeecord-api](https://github.com/SpigotMC/BungeeCord) from 1.21-R0.1 to 1.21-R0.4.
- [Commits](https://github.com/SpigotMC/BungeeCord/commits)

---
updated-dependencies:
- dependency-name: net.md-5:bungeecord-api
  dependency-version: 1.21-R0.4
  dependency-type: direct:production
...

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

Author: dependabot[bot]

bungee/pom.xml

@@ -18,7 +18,7 @@
         <dependency>
             <groupId>net.md-5</groupId>
             <artifactId>bungeecord-api</artifactId>
-            <version>1.21-R0.1</version>
+            <version>1.21-R0.4</version>
             <scope>provided</scope>
         </dependency>