FIX: fix package name and install it in CI

.docker/Dockerfile

@@ -25,7 +25,7 @@ ADD https://gitlab.com/api/v4/projects/13656973/repository/branches/dev \
 RUN git clone https://gitlab.com/caosdb/caosdb-pylib.git && \
    cd caosdb-pylib && git checkout dev && pip3 install .
 # At least recommonmark 0.6 required.
-RUN pip3 install -U html2text pycodestyle pylint recommonmark sphinx-rtd-theme
+RUN pip3 install -U html2text pycodestyle pylint recommonmark sphinx-rtd-theme gitignore-parser
 COPY . /git
 RUN rm -r /git/.git \
     && mv /git/.docker/pycaosdb.ini /git/integrationtests

setup.py

@@ -162,7 +162,7 @@ def setup_package():
                           "xlrd>=2.0",
                           ],
         extras_require={"h5-crawler": ["h5py>=3.3.0", ],
-                        "gitignore_parser ": ["gitignore_parser >=0.1.0", ],
+                        "gitignore-parser ": ["gitignore-parser >=0.1.0", ],
                         },
         packages=find_packages('src'),
         package_dir={'': 'src'},