Merge pull request #49 from apache/dependabot/maven/org.apache.maven.plugins-maven-dependency-plugin-3.6.1

Bump org.apache.maven.plugins:maven-dependency-plugin from 3.5.0 to 3.6.1
diff --git a/buildtools/pom.xml b/buildtools/pom.xml
index 566d09d..2a06a64 100644
--- a/buildtools/pom.xml
+++ b/buildtools/pom.xml
@@ -56,7 +56,7 @@
         <dependency>
             <groupId>org.apache.maven</groupId>
             <artifactId>maven-model</artifactId>
-            <version>3.9.1</version>
+            <version>3.9.6</version>
             <optional>true</optional>
         </dependency>
         <dependency>
diff --git a/pom.xml b/pom.xml
index 067c891..183d04e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -100,7 +100,7 @@
                  <plugin>
                      <groupId>org.apache.maven.plugins</groupId>
                      <artifactId>maven-clean-plugin</artifactId>
-                     <version>3.2.0</version>
+                     <version>3.3.2</version>
                  </plugin>
                  <plugin>
                      <groupId>org.apache.maven.plugins</groupId>
@@ -122,7 +122,7 @@
                  <plugin>
                      <groupId>org.apache.maven.plugins</groupId>
                      <artifactId>maven-javadoc-plugin</artifactId>
-                     <version>3.5.0</version>
+                     <version>3.6.3</version>
                      <configuration>
                          <attach>true</attach>
                          <source>1.6</source>