[maven-release-plugin] prepare release 2.21.1

pom.xml

@@ -9,7 +9,7 @@
 
   <groupId>com.spotify.fmt</groupId>
   <artifactId>fmt-maven-plugin</artifactId>
-  <version>2.22-SNAPSHOT</version>
+  <version>2.21.1</version>
   <packaging>maven-plugin</packaging>
 
   <name>${project.groupId}:${project.artifactId}</name>
@@ -62,7 +62,7 @@
     <connection>scm:git:git@github.com:spotify/fmt-maven-plugin.git</connection>
     <developerConnection>scm:git:git@github.com:spotify/fmt-maven-plugin.git</developerConnection>
     <url>http://github.com/spotify/fmt-maven-plugin</url>
-    <tag>HEAD</tag>
+    <tag>2.21.1</tag>
   </scm>
 
   <distributionManagement>
@@ -81,7 +81,7 @@
     <maven.compiler.source>${maven.compiler.release}</maven.compiler.source>
     <maven.compiler.target>${maven.compiler.release}</maven.compiler.target>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <project.build.outputTimestamp>1695388591</project.build.outputTimestamp>
+    <project.build.outputTimestamp>1695393582</project.build.outputTimestamp>
     <maven.version>3.9.4</maven.version>
   </properties>