Merge pull request #1203 from jwuttke/corr2

CI: revert Mac to libcerf from brew (now back at 1.14)

.github/workflows/ba-macos.yml

@@ -44,12 +44,8 @@ jobs:
 
     - name: setup dependencies
       run: |
-        brew install cmake ccache fftw gsl boost qt5 libtiff eigen python numpy scipy
+        brew install cmake ccache fftw gsl boost qt5 libtiff eigen python numpy scipy libcerf
         echo "Qt5 is installed to $QTDIR"
-        wget http://apps.jcns.fz-juelich.de/src/MacLibs/cerf-1.14-Darwin.zip
-        unzip cerf-1.14-Darwin.zip
-        mv cerf-1.14-Darwin/lib/* /usr/local/bin/
-        mv cerf-1.14-Darwin/include/* /usr/local/include/
 
     - name: Install Python packages
       run: |