[maven-release-plugin] prepare release semanticcms-core-1.13.0

pom.xml

@@ -29,12 +29,12 @@ along with semanticcms-core.  If not, see <https://www.gnu.org/licenses/>.
     <relativePath>../parent/pom.xml</relativePath>
   </parent>
 
-  <groupId>com.semanticcms</groupId><artifactId>semanticcms-core</artifactId><version>1.13.0-SNAPSHOT</version>
+  <groupId>com.semanticcms</groupId><artifactId>semanticcms-core</artifactId><version>1.13.0</version>
   <packaging>pom</packaging>
 
   <properties>
     <!-- Must be set to ${git.commit.time} for snapshots or ISO 8601 timestamp for releases. -->
-    <project.build.outputTimestamp>${git.commit.time}</project.build.outputTimestamp>
+    <project.build.outputTimestamp>2023-09-25T06:30:29Z</project.build.outputTimestamp>
   </properties>
 
   <name>SemanticCMS Core</name>
@@ -69,7 +69,7 @@ along with semanticcms-core.  If not, see <https://www.gnu.org/licenses/>.
     <connection>scm:git:git://github.com/ao-apps/semanticcms-core.git</connection>
     <developerConnection>scm:git:git@github.com:ao-apps/semanticcms-core.git</developerConnection>
     <url>https://github.com/ao-apps/semanticcms-core</url>
-    <tag>HEAD</tag>
+    <tag>semanticcms-core-1.13.0</tag>
   </scm>
 
   <issueManagement>