[maven-release-plugin] prepare for next development iteration

pom.xml

@@ -27,7 +27,7 @@
   </parent>
 
   <artifactId>maven-filtering</artifactId>
-  <version>3.2.0</version>
+  <version>3.2.1-SNAPSHOT</version>
 
   <name>Apache Maven Filtering</name>
   <description>A component to assist in filtering of resource files with properties from a Maven project.</description>
@@ -36,7 +36,7 @@
     <connection>scm:git:https://gitbox.apache.org/repos/asf/maven-filtering.git</connection>
     <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/maven-filtering.git</developerConnection>
     <url>https://github.com/apache/maven-filtering/tree/${project.scm.tag}</url>
-    <tag>maven-filtering-3.2.0</tag>
+    <tag>HEAD</tag>
   </scm>
   <issueManagement>
     <system>JIRA</system>
@@ -56,7 +56,7 @@
   <properties>
     <mavenVersion>3.1.0</mavenVersion>
     <javaVersion>7</javaVersion>
-    <project.build.outputTimestamp>2020-08-05T14:01:43Z</project.build.outputTimestamp>
+    <project.build.outputTimestamp>2020-08-05T14:02:45Z</project.build.outputTimestamp>
   </properties>
 
   <contributors>