[build] try to avoid strange travis build error on -Posgi

Author: mkristian

lib/pom.rb

@@ -87,6 +87,8 @@ def to_pathname
   # this is not an artifact for maven central
   plugin :deploy, :skip => true
 
+  plugin :invoker, :skipInstallation => true
+
   gem 'ruby-maven', '3.1.1.0.8', :scope => :provided
 
   execute :install_gems, :'package' do |ctx|

lib/pom.xml

@@ -123,6 +123,12 @@
           <skip>true</skip>
         </configuration>
       </plugin>
+      <plugin>
+        <artifactId>maven-invoker-plugin</artifactId>
+        <configuration>
+          <skipInstallation>true</skipInstallation>
+        </configuration>
+      </plugin>
       <plugin>
         <groupId>io.tesla.polyglot</groupId>
         <artifactId>tesla-polyglot-maven-plugin</artifactId>