Bump poi.version from 5.3.0 to 5.4.0

Bumps `poi.version` from 5.3.0 to 5.4.0.

Updates `org.apache.poi:poi` from 5.3.0 to 5.4.0

Updates `org.apache.poi:poi-ooxml` from 5.3.0 to 5.4.0

---
updated-dependencies:
- dependency-name: org.apache.poi:poi
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.apache.poi:poi-ooxml
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

spreadsheet-poi/pom.xml

@@ -15,7 +15,7 @@
     <url>https://github.com/nbbrd/spreadsheet4j</url>
 
     <properties>
-        <poi.version>5.3.0</poi.version>
+        <poi.version>5.4.0</poi.version>
     </properties>
 
     <dependencyManagement>