Bump net.dv8tion:JDA from 5.0.0-beta.19 to 5.0.0-beta.20

Bumps [net.dv8tion:JDA](https://github.com/discord-jda/JDA) from 5.0.0-beta.19 to 5.0.0-beta.20.
- [Release notes](https://github.com/discord-jda/JDA/releases)
- [Commits](discord-jda/JDA@v5.0.0-beta.19...v5.0.0-beta.20)

---
updated-dependencies:
- dependency-name: net.dv8tion:JDA
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

build.gradle.kts

@@ -57,7 +57,7 @@ dependencies {
     testImplementation("org.junit.jupiter:junit-jupiter-engine:5.10.1")
     testImplementation("ch.qos.logback:logback-classic:1.4.14")
 
-    api("net.dv8tion:JDA:5.0.0-beta.19") {
+    api("net.dv8tion:JDA:5.0.0-beta.20") {
         exclude(module = "opus-java")
     }