Fix MavenInvoker test

[cesarsotovalero]

The test is not executing the mvn dependency:tree command on the project https://github.com/castor-software/depclean/tree/master/depclean-maven-plugin/src/test/resources/MavenInvokerResources/basic_spring_maven_project

[codecov]

Codecov Report

Merging #121 (ee91512) into master (5baf45e) will not change coverage.
The diff coverage is 25.00%.

@@            Coverage Diff            @@
##             master     #121   +/-   ##
=========================================
  Coverage     39.96%   39.96%           
  Complexity      178      178           
=========================================
  Files            40       40           
  Lines          1126     1126           
  Branches         84       84           
=========================================
  Hits            450      450           
  Misses          635      635           
  Partials         41       41           

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

25.0% Coverage
0.0% Duplication