Bump slf4j.version from 2.0.13 to 2.0.15 (#4998)

Bumps `slf4j.version` from 2.0.13 to 2.0.15.

Updates `org.slf4j:slf4j-api` from 2.0.13 to 2.0.15

Updates `org.slf4j:slf4j-simple` from 2.0.13 to 2.0.15

Updates `org.slf4j:slf4j-jdk14` from 2.0.13 to 2.0.15

---
updated-dependencies:
- dependency-name: org.slf4j:slf4j-api
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.slf4j:slf4j-simple
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.slf4j:slf4j-jdk14
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

examples/pom.xml

@@ -77,7 +77,7 @@
     <resteasy.version>4.5.8.Final</resteasy.version>
 
     <!-- Slf4j -->
-    <slf4j.version>2.0.13</slf4j.version>
+    <slf4j.version>2.0.15</slf4j.version>
 
     <!-- Vert.x version -->
     <vertx.version>3.9.5</vertx.version>