Bump org.slf4j:log4j-over-slf4j

Bumps org.slf4j:log4j-over-slf4j from 1.7.26 to 2.0.13.

---
updated-dependencies:
- dependency-name: org.slf4j:log4j-over-slf4j
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

samples/lambda-kotlin-request-router-sample/build.gradle.kts

@@ -42,7 +42,7 @@ dependencies {
     implementation("com.google.guava:guava:23.0")
 
     implementation("ch.qos.logback:logback-classic:1.5.6")
-    implementation("org.slf4j:log4j-over-slf4j:1.7.26")
+    implementation("org.slf4j:log4j-over-slf4j:2.0.13")
 
     testImplementation("org.junit.jupiter:junit-jupiter-engine:5.3.1")
 }