Bump org.slf4j:slf4j-api from 2.0.9 to 2.0.13

Bumps org.slf4j:slf4j-api from 2.0.9 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] <support@github.com>

gradle/libs.versions.toml

@@ -15,7 +15,7 @@ org-bouncycastle-bcpkix-jdk18on = "1.77"
 org-mockito-mockito-core = "5.11.0"
 org-restlet-jse-org-restlet = "2.4.3"
 org-restlet-jse-org-restlet-ext-simple = "2.4.3"
-org-slf4j-slf4j-api = "2.0.9"
+org-slf4j-slf4j-api = "2.0.13"
 org-testng-testng = "7.9.0"
 com-benjaminsproule-license = "0.16.2"
 io-github-gradle-nexus-publish-plugin = "2.0.0"