Merge pull request #30 from apache/dependabot/maven/org.apache.maven-maven-model-3.9.1

Bump maven-model from 3.9.0 to 3.9.1
diff --git a/buildtools/pom.xml b/buildtools/pom.xml
index b8bcbda..d3b99f1 100644
--- a/buildtools/pom.xml
+++ b/buildtools/pom.xml
@@ -56,7 +56,7 @@
         <dependency>
             <groupId>org.apache.maven</groupId>
             <artifactId>maven-model</artifactId>
-            <version>3.9.0</version>
+            <version>3.9.1</version>
             <optional>true</optional>
         </dependency>
         <dependency>