Merge pull request #445 from signalfx/dependabot/maven/org.apache.maven.plugins-maven-source-plugin-3.3.1

Bump org.apache.maven.plugins:maven-source-plugin from 3.3.0 to 3.3.1

Author: laurit

pom.xml

@@ -280,7 +280,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-source-plugin</artifactId>
-        <version>3.3.0</version>
+        <version>3.3.1</version>
         <executions>
           <execution>
             <id>attach-sources</id>