Bump org.slf4j:slf4j-simple from 1.7.36 to 2.0.15

Bumps org.slf4j:slf4j-simple from 1.7.36 to 2.0.15.

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

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

Author: dependabot[bot]

pom.xml

@@ -70,7 +70,7 @@
       <dependency>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-simple</artifactId>
-        <version>1.7.36</version>
+        <version>2.0.15</version>
       </dependency>
 
       <!-- unit testing -->