Bump org.slf4j:slf4j-simple from 1.7.36 to 2.0.7 in /server/app

Bumps [org.slf4j:slf4j-simple](https://github.com/qos-ch/slf4j) from 1.7.36 to 2.0.7.
- [Release notes](https://github.com/qos-ch/slf4j/releases)
- [Commits](https://github.com/qos-ch/slf4j/commits)

---
updated-dependencies:
- dependency-name: org.slf4j:slf4j-simple
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

server/app/build.gradle.kts

@@ -27,7 +27,7 @@ dependencies {
     implementation("io.ktor:ktor-server-sessions")
     implementation("io.ktor:ktor-server-call-logging")
     implementation("io.ktor:ktor-network-tls-certificates")
-    implementation("org.slf4j:slf4j-simple:1.7.36")
+    implementation("org.slf4j:slf4j-simple:2.0.7")
     implementation(platform("com.squareup.okhttp3:okhttp-bom:4.10.0"))
     implementation("com.squareup.okhttp3:okhttp")