Bump net.dv8tion:JDA from 5.0.0-beta.15 to 5.0.0-beta.16 (#347)

Bumps [net.dv8tion:JDA](https://github.com/discord-jda/JDA) from 5.0.0-beta.15 to 5.0.0-beta.16.
- [Release notes](https://github.com/discord-jda/JDA/releases)
- [Commits](discord-jda/JDA@v5.0.0-beta.15...v5.0.0-beta.16)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

discord-connector/jda/build.gradle.kts

@@ -9,7 +9,7 @@ repositories {
 dependencies {
     implementation( project(":discord-connector:api"))
 
-    implementation("net.dv8tion:JDA:5.0.0-beta.15")
+    implementation("net.dv8tion:JDA:5.0.0-beta.16")
     implementation(libs.reactor.core)
     implementation(libs.logback.classic)
     implementation(libs.log4j.to.slf4j)