improve MIP tests

.github/workflows/quicktest.yml

@@ -25,7 +25,7 @@ jobs:
       with: { fetch-depth: 2 }
     - run: if ./test/match_changed_files.sh '^test|^src/.*.[ch]' ; then echo GO=1 >> $GITHUB_ENV ; fi
     - if: ${{ env.GO == 1 }}
-      run: ./test/setup_ga_network.sh && make -C test ${{ matrix.target }}
+      run: make -C test ${{ matrix.target }}
   s390:
     runs-on: ubuntu-latest
     steps: