build(deps-dev): bump log4j.version from 2.25.4 to 2.26.0

Bumps `log4j.version` from 2.25.4 to 2.26.0.

Updates `org.apache.logging.log4j:log4j-api` from 2.25.4 to 2.26.0

Updates `org.apache.logging.log4j:log4j-core` from 2.25.4 to 2.26.0

Updates `org.apache.logging.log4j:log4j-slf4j-impl` from 2.25.4 to 2.26.0

---
updated-dependencies:
- dependency-name: org.apache.logging.log4j:log4j-api
  dependency-version: 2.26.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-version: 2.26.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
- dependency-name: org.apache.logging.log4j:log4j-slf4j-impl
  dependency-version: 2.26.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

demo/pom.xml

@@ -17,7 +17,7 @@
         <maven.deploy.skip>true</maven.deploy.skip>
 
         <deps.mysql-driver.version>8.0.33</deps.mysql-driver.version>
-        <log4j.version>2.25.4</log4j.version>
+        <log4j.version>2.26.0</log4j.version>
     </properties>
     <artifactId>configured-demo</artifactId>
     <packaging>jar</packaging>