[skip ci] prepare for next development iteration

Author: YevhenHrytsai

confluence-slack-integration/confluence-slack-server-integration-plugin/pom.xml

@@ -11,7 +11,7 @@
     <artifactId>confluence-slack-server-integration-plugin</artifactId>
     <packaging>atlassian-plugin</packaging>
     <name>Slack for Confluence Data Center</name>
-    <version>4.0.0</version>
+    <version>4.0.1-SNAPSHOT</version>
     <description>This is the Slack integration for Confluence Data Center</description>
 
     <properties>
@@ -588,7 +588,7 @@
         <connection>scm:git:https://github.com/atlassian-labs/atlassian-slack-integration-server.git</connection>
         <developerConnection>scm:git:https://github.com/atlassian-labs/atlassian-slack-integration-server.git</developerConnection>
         <url>https://github.com/atlassian-labs/atlassian-slack-integration-server.git</url>
-        <tag>confluence-slack-server-integration-plugin-4.0.0</tag>
+        <tag>HEAD</tag>
     </scm>
 
     <developers>