Fix test resource paths in monticore-grammar-emf

[jra-se]

Some tests in monticore-grammar use models from the resource directory as input data.
In this case, the path to the original test resource directory (src/test/resources/) has been used.
However, during build the test resources are also automatically copied to target/resources/test.

The monticore-grammar-emf module copies large parts of the monticore-grammar project during build.
The target of the copy operation is inside this projects build directory (target).

During the copyTestResources task of the monticore-grammar-emf gradle configuration, the test resources were copied from src/test/resources to target/test/resources.
As a result, some tests used multiple input paths, while various tests were excluded in monticore-grammar-emf.

This pull request upgrades deprecated gradle syntax, updates the copyTestResources task to copy the test resources to the same location as in monticore-grammar. Finally, all affected tests are fixed and reenabled in monticore-emf.

[github-actions]

⚠️ Changes might break the MontiVerse

Project	Status
artifacts	⚠️

details

Project	Status
montiarc	✅
umlp_experiments	✅
umlp_tool	✅
sd	✅
montifun	✅
fd	✅
automaton	✅
sc	✅
guidsl	✅
artifacts	⚠️
ocl	✅
od	✅
ucd	✅
langexperiments	✅
json	✅
xml	✅
cd2gui	✅
mlc	✅
cd4analysis	✅
monticore_basic	✅

The MontiVerse is a collection of (internal and public) language projects.