Update dependency com.diffplug.spotless:spotless-maven-plugin to v2.29.0 (#9)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
diff --git a/pom.xml b/pom.xml
index 75d96af..2c85c28 100644
--- a/pom.xml
+++ b/pom.xml
@@ -69,7 +69,7 @@
     <maven-javadoc-plugin.version>3.4.1</maven-javadoc-plugin.version>
     <maven-source-plugin.version>3.2.1</maven-source-plugin.version>
     <nexus-staging-plugin.version>1.6.13</nexus-staging-plugin.version>
-    <spotless-plugin.version>2.28.0</spotless-plugin.version>
+    <spotless-plugin.version>2.29.0</spotless-plugin.version>
     <surefire-plugin.version>3.0.0-M7</surefire-plugin.version>
 
     <quarkus.version>2.15.1.Final</quarkus.version>