Bump org.slf4j:slf4j-api from 2.0.12 to 2.0.13

Bumps org.slf4j:slf4j-api from 2.0.12 to 2.0.13.

---
updated-dependencies:
- dependency-name: org.slf4j:slf4j-api
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

backend/build.gradle.kts

@@ -27,7 +27,7 @@ dependencies {
     // When.MAYBE warning fix
     annotationProcessor("com.google.code.findbugs:jsr305:3.0.2")
     implementation("ch.qos.logback:logback-classic:1.5.5")
-    implementation("org.slf4j:slf4j-api:2.0.12")
+    implementation("org.slf4j:slf4j-api:2.0.13")
     implementation("com.google.code.findbugs:jsr305:3.0.2")
     implementation("io.micronaut.security:micronaut-security-jwt")
     implementation("io.micronaut.reactor:micronaut-reactor")