Bump maven-shade-plugin from 3.1.1 to 3.2.3

Bumps [maven-shade-plugin](https://github.com/apache/maven-shade-plugin) from 3.1.1 to 3.2.3.
- [Release notes](https://github.com/apache/maven-shade-plugin/releases)
- [Commits](apache/maven-shade-plugin@maven-shade-plugin-3.1.1...maven-shade-plugin-3.2.3)

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

Author: dependabot-preview[bot]

handlebars-proto/pom.xml

@@ -28,7 +28,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-shade-plugin</artifactId>
-        <version>2.1</version>
+        <version>3.2.3</version>
         <executions>
           <execution>
             <phase>package</phase>

handlebars/pom.xml

@@ -21,7 +21,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-shade-plugin</artifactId>
-        <version>3.1.1</version>
+        <version>3.2.3</version>
         <executions>
           <execution>
             <id>standalone</id>