chore(deps): bump com.github.retrooper:packetevents-spigot

Bumps [com.github.retrooper:packetevents-spigot](https://github.com/retrooper/packetevents) from 2.7.0 to 2.8.0.
- [Release notes](https://github.com/retrooper/packetevents/releases)
- [Commits](retrooper/packetevents@v2.7.0...v2.8.0)

---
updated-dependencies:
- dependency-name: com.github.retrooper:packetevents-spigot
  dependency-version: 2.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

bukkit/pom.xml

@@ -312,7 +312,7 @@
         <dependency>
             <groupId>com.github.retrooper</groupId>
             <artifactId>packetevents-spigot</artifactId>
-            <version>2.7.0</version>
+            <version>2.8.0</version>
             <scope>provided</scope>
         </dependency>