Bump log4jVersion from 2.23.0 to 2.23.1 (#201)

Bumps `log4jVersion` from 2.23.0 to 2.23.1.

Updates `org.apache.logging.log4j:log4j-core` from 2.23.0 to 2.23.1

Updates `org.apache.logging.log4j:log4j-slf4j2-impl` from 2.23.0 to 2.23.1

---
updated-dependencies:
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.apache.logging.log4j:log4j-slf4j2-impl
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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build.gradle.kts

@@ -49,7 +49,7 @@ subprojects {
     extra.apply {
         set("creekVersion", "0.4.2-SNAPSHOT")
 
-        set("log4jVersion", "2.23.0")           // https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core
+        set("log4jVersion", "2.23.1")           // https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core
         set("guavaVersion", "33.0.0-jre")         // https://mvnrepository.com/artifact/com.google.guava/guava
         set("junitVersion", "5.10.2")            // https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-api
         set("junitPioneerVersion", "2.2.0")     // https://mvnrepository.com/artifact/org.junit-pioneer/junit-pioneer