[maven-release-plugin] prepare release archetypes-1.20

empty-plugin/pom.xml

@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.jenkins.archetypes</groupId>
         <artifactId>archetypes-parent</artifactId>
-        <version>1.20-SNAPSHOT</version>
+        <version>1.20</version>
     </parent>
     <groupId>io.jenkins.archetypes</groupId>
     <artifactId>empty-plugin</artifactId>

global-configuration/pom.xml

@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.jenkins.archetypes</groupId>
         <artifactId>archetypes-parent</artifactId>
-        <version>1.20-SNAPSHOT</version>
+        <version>1.20</version>
     </parent>
     <artifactId>global-configuration-plugin</artifactId>
     <packaging>maven-archetype</packaging>

hello-world/pom.xml

@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.jenkins.archetypes</groupId>
         <artifactId>archetypes-parent</artifactId>
-        <version>1.20-SNAPSHOT</version>
+        <version>1.20</version>
     </parent>
     <groupId>io.jenkins.archetypes</groupId>
     <artifactId>hello-world-plugin</artifactId>

pom.xml

@@ -9,7 +9,7 @@
     </parent>
     <groupId>io.jenkins.archetypes</groupId>
     <artifactId>archetypes-parent</artifactId>
-    <version>1.20-SNAPSHOT</version>
+    <version>1.20</version>
     <packaging>pom</packaging>
     <name>Jenkins Archetypes</name>
     <description>Maven archetypes of useful things you may want to create in the Jenkins project.</description>
@@ -51,7 +51,7 @@
     <scm child.scm.connection.inherit.append.path="false" child.scm.developerConnection.inherit.append.path="false" child.scm.url.inherit.append.path="false">
         <connection>scm:git:[email protected]/jenkinsci/archetypes.git</connection>
         <developerConnection>scm:git:ssh://[email protected]/jenkinsci/archetypes.git</developerConnection>
-        <tag>HEAD</tag>
+        <tag>archetypes-1.20</tag>
         <url>https://github.com/jenkinsci/archetypes/</url>
     </scm>
     <properties>