Bump com.google.guava:guava in /reposilite-backend

Bumps [com.google.guava:guava](https://github.com/google/guava) from 33.3.1-android to 33.4.0-android.
- [Release notes](https://github.com/google/guava/releases)
- [Commits](https://github.com/google/guava/commits)

---
updated-dependencies:
- dependency-name: com.google.guava:guava
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

reposilite-backend/build.gradle.kts

@@ -118,7 +118,7 @@ dependencies {
         exclude(group = "com.google.guava", module = "guava")
     }
     api("commons-codec:commons-codec:1.17.1")
-    api("com.google.guava:guava:33.3.1-android")
+    api("com.google.guava:guava:33.4.0-android")
     testImplementation("com.google.http-client:google-http-client-jackson2:$httpClient")
 
     val jansi = "2.4.1"