chore(deps): bump org.bouncycastle:bcprov-jdk18on from 1.78.1 to 1.81

Bumps [org.bouncycastle:bcprov-jdk18on](https://github.com/bcgit/bc-java) from 1.78.1 to 1.81.
- [Changelog](https://github.com/bcgit/bc-java/blob/main/docs/releasenotes.html)
- [Commits](https://github.com/bcgit/bc-java/commits)

---
updated-dependencies:
- dependency-name: org.bouncycastle:bcprov-jdk18on
  dependency-version: '1.81'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

mod/build.gradle.kts

@@ -193,10 +193,10 @@ dependencies {
     relocated(implementation("gg.skytils.hypixel.types:types") { excludeKotlin() })
     relocated(implementation("gg.skytils.skytilsws.shared:ws-shared") { excludeKotlin() })
 
-    include(implementation("org.bouncycastle:bcpg-jdk18on:1.78.1") {
+    include(implementation("org.bouncycastle:bcpg-jdk18on:1.81") {
         exclude(module = "bcprov-jdk18on")
     })
-    compileOnly("org.bouncycastle:bcprov-jdk18on:1.78.1")
+    compileOnly("org.bouncycastle:bcprov-jdk18on:1.81")
 
     if (platform.isFabric && !isLegacyFabric) {
         modImplementation("org.incendo:cloud-fabric:2.0.0-beta.10")