dependabot: bump org.slf4j:slf4j-api from 2.0.13 to 2.0.16 (#666)

Bumps org.slf4j:slf4j-api from 2.0.13 to 2.0.16.

---
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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
(cherry picked from commit 021fea5)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

spi/build.gradle

@@ -44,7 +44,7 @@ jacocoTestReport {
 }
 check.dependsOn jacocoTestReport
 
-def slf4j_version_of_cronutils = "2.0.13"
+def slf4j_version_of_cronutils = "2.0.16"
 dependencies {
     compileOnly "org.opensearch:opensearch:${opensearch_version}"
     // slf4j is the runtime dependency of cron-utils