Bump checkstyle from 8.42 to 8.43 (#768)

Bumps [checkstyle](https://github.com/checkstyle/checkstyle) from 8.42 to 8.43.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](https://github.com/checkstyle/checkstyle/compare/checkstyle-8.42...checkstyle-8.43)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/pom.xml b/pom.xml
index ce54e83..29b14d4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -619,7 +619,7 @@
     <commons.encoding>utf-8</commons.encoding>
 
     <checkstyle.plugin.version>3.1.2</checkstyle.plugin.version>
-    <checkstyle.version>8.42</checkstyle.version>
+    <checkstyle.version>8.43</checkstyle.version>
     <checkstyle.configdir>src/site/resources/checkstyle</checkstyle.configdir>
 
     <spotbugs.plugin.version>4.2.3</spotbugs.plugin.version>