Fix Gradle deprecations

[jra-se]

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[github-actions]

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montiarc	✅
umlp_experiments	✅
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sd	✅
montifun	✅
fd	✅
automaton	✅
sc	✅
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ocl	✅
od	✅
ucd	✅
langexperiments	✅
json	✅
xml	✅
cd2gui	✅
mlc	✅
monticore_future	✅
cd4analysis	✅

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