Fix m-deploy-p ITs

maven-plugin-testing-harness/src/main/java/org/apache/maven/plugin/testing/MojoRule.java

diff --git a/maven-plugin-testing-harness/src/main/java/org/apache/maven/plugin/testing/MojoRule.java b/maven-plugin-testing-harness/src/main/java/org/apache/maven/plugin/testing/MojoRule.java
index f335ffe..2a288ab 100644
--- a/maven-plugin-testing-harness/src/main/java/org/apache/maven/plugin/testing/MojoRule.java
+++ b/maven-plugin-testing-harness/src/main/java/org/apache/maven/plugin/testing/MojoRule.java
@@ -23,6 +23,7 @@
 import java.io.InputStream;
 import java.util.Map;
 
+import org.apache.maven.api.Session;
 import org.apache.maven.execution.DefaultMavenExecutionRequest;
 import org.apache.maven.execution.MavenExecutionRequest;
 import org.apache.maven.execution.MavenSession;
@@ -406,6 +407,7 @@
         {
             sessionScope.enter();
             sessionScope.seed( MavenSession.class, session );
+            sessionScope.seed( Session.class, session.getSession() );
 
             MojoExecutionScope executionScope = lookup( MojoExecutionScope.class );
             try