Fix visualization dependencies

Author: dweindl

python/sdist/setup.cfg

@@ -52,7 +52,9 @@ test =
     pytest-rerunfailures
     coverage
     shyaml
-vis = matplotlib
+vis =
+    matplotlib
+    seaborn
 
 [options.package_data]
 amici =

scripts/installAmiciSource.sh

@@ -31,5 +31,5 @@ pip install -U "setuptools<64"
 pip install --upgrade pip wheel
 pip install --upgrade pip scipy matplotlib coverage pytest \
    pytest-cov cmake_build_extension numpy
-pip install --verbose -e ${AMICI_PATH}/python/sdist[petab,test,pysb] --no-build-isolation
+pip install --verbose -e ${AMICI_PATH}/python/sdist[petab,test,pysb,vis] --no-build-isolation
 deactivate