[maven-release-plugin] prepare release 2.23

pom.xml

@@ -9,7 +9,7 @@
 
   <groupId>com.spotify.fmt</groupId>
   <artifactId>fmt-maven-plugin</artifactId>
-  <version>2.23-SNAPSHOT</version>
+  <version>2.23</version>
   <packaging>maven-plugin</packaging>
 
   <name>${project.groupId}:${project.artifactId}</name>
@@ -62,13 +62,13 @@
     <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>2.23</tag>
   </scm>
 
   <properties>
     <java.version>11</java.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <project.build.outputTimestamp>1705916719</project.build.outputTimestamp>
+    <project.build.outputTimestamp>1709805553</project.build.outputTimestamp>
     <maven.version>3.9.6</maven.version>
   </properties>