[maven-release-plugin] prepare release postgresql-api-42.3.1-rc1

Author: cyrille-leclerc

pom.xml

@@ -11,7 +11,7 @@
 
     <groupId>io.jenkins.plugins</groupId>
     <artifactId>postgresql-api</artifactId>
-    <version>42.3.1-SNAPSHOT</version>
+    <version>42.3.1-rc1</version>
     <packaging>hpi</packaging>
 
     <name>PostgreSQL API Plugin</name>
@@ -33,7 +33,7 @@
         <connection>scm:git:[email protected]:jenkinsci/postgresql-api-plugin.git</connection>
         <developerConnection>scm:git:[email protected]:jenkinsci/postgresql-api-plugin.git
         </developerConnection>
-        <tag>HEAD</tag>
+        <tag>postgresql-api-42.3.1-rc1</tag>
     </scm>
 
     <developers>