another emfer ci fix

Dockerfile

@@ -56,7 +56,7 @@ RUN echo "glpkPath = /usr/lib/x86_64-linux-gnu/jni" > gradle.properties
 #RUN sed -i '/jastadd-mquat-solver-emfer/d' settings.gradle
 #RUN sed -i '/jastadd-mquat-solver-emfer/d' jastadd-mquat-benchmark/build.gradle
 #RUN sed -i '/EMFeRSolver/d' jastadd-mquat-benchmark/src/main/java/de/tudresden/inf/st/mquat/benchmark/SolverFactory.java
-RUN echo "test.enabled = false" > ./jastadd-mquat-solver-emfer/build.gradle
+RUN echo "test.enabled = false" >> ./jastadd-mquat-solver-emfer/build.gradle
 #RUN echo "test.enabled = false" > ./jastadd-mquat-solver-random/build.gradle
 RUN sed -i 's/MINUTES/SECONDS/g' jastadd-mquat-benchmark/src/main/resources/scenarios.json