[maven-release-plugin] prepare release maven-plugin-testing-3.3.0

Author: ifedorenko

maven-plugin-testing-harness/pom.xml

@@ -25,7 +25,7 @@ under the License.
   <parent>
     <groupId>org.apache.maven.plugin-testing</groupId>
     <artifactId>maven-plugin-testing</artifactId>
-    <version>3.3.0-SNAPSHOT</version>
+    <version>3.3.0</version>
   </parent>
 
   <artifactId>maven-plugin-testing-harness</artifactId>

maven-plugin-testing-tools/pom.xml

@@ -25,7 +25,7 @@ under the License.
   <parent>
     <groupId>org.apache.maven.plugin-testing</groupId>
     <artifactId>maven-plugin-testing</artifactId>
-    <version>3.3.0-SNAPSHOT</version>
+    <version>3.3.0</version>
   </parent>
 
   <artifactId>maven-plugin-testing-tools</artifactId>

maven-test-tools/pom.xml

@@ -25,7 +25,7 @@ under the License.
   <parent>
     <groupId>org.apache.maven.plugin-testing</groupId>
     <artifactId>maven-plugin-testing</artifactId>
-    <version>3.3.0-SNAPSHOT</version>
+    <version>3.3.0</version>
   </parent>
 
   <artifactId>maven-test-tools</artifactId>

pom.xml

@@ -31,7 +31,7 @@ under the License.
 
   <groupId>org.apache.maven.plugin-testing</groupId>
   <artifactId>maven-plugin-testing</artifactId>
-  <version>3.3.0-SNAPSHOT</version>
+  <version>3.3.0</version>
   <packaging>pom</packaging>
 
   <name>Maven Plugin Testing</name>
@@ -127,7 +127,7 @@ under the License.
     <connection>scm:git:https://git-wip-us.apache.org/repos/asf/maven-plugin-testing.git</connection>
     <developerConnection>scm:git:https://git-wip-us.apache.org/repos/asf/maven-plugin-testing.git</developerConnection>
     <url>https://github.com/apache/maven-plugin-testing/</url>
-    <tag>master</tag>
+    <tag>maven-plugin-testing-3.3.0</tag>
   </scm>
   <issueManagement>
     <system>jira</system>