Bump slf4jVersion from 2.0.13 to 2.0.15

Bumps `slf4jVersion` 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

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

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -86,7 +86,7 @@ under the License.
     <mavenPluginTestingVersion>4.0.0-beta-1</mavenPluginTestingVersion>
     <mavenResolverVersion>2.0.0-alpha-11</mavenResolverVersion>
     <mockitoVersion>5.12.0</mockitoVersion>
-    <slf4jVersion>2.0.13</slf4jVersion>
+    <slf4jVersion>2.0.15</slf4jVersion>
     <version.plexus-xml>4.0.3</version.plexus-xml>
     <version.maven-plugin-tools>4.0.0-beta-1</version.maven-plugin-tools>
     <version.maven-invoker-plugin>3.7.0</version.maven-invoker-plugin>