Bump org.apache.logging.log4j:log4j-to-slf4j from 2.21.0 to 2.21.1

Bumps org.apache.logging.log4j:log4j-to-slf4j from 2.21.0 to 2.21.1.

---
updated-dependencies:
- dependency-name: org.apache.logging.log4j:log4j-to-slf4j
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -117,7 +117,7 @@
             <!-- runtime dep for spreadsheet-poi -->
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-to-slf4j</artifactId>
-            <version>2.21.0</version>
+            <version>2.21.1</version>
             <scope>runtime</scope>
             <exclusions>
                 <exclusion>