Merge branch 'ci/tests' into 'master'

TEST,CI: Avoid hangs on py37, exclude gennb script from cov report

See merge request !89

.ci/unit_tests.sh

@@ -7,6 +7,8 @@ apt-get install -y bsdmainutils libhdf5-dev
 
 pip install --upgrade pip setuptools
 pip install --only-binary tables tables
+# https://github.com/nedbat/coveragepy/issues/1310
+pip install "coverage==6.2.*"
 pip install -r requirements.txt
 pip install -r requirements-demo.txt
 pip install -r requirements-test.txt

.coveragerc

@@ -6,3 +6,4 @@ source      = funpack
 [report]
 omit =
     funpack/tests/*
+    funpack/scripts/generate_notebooks.py
\ No newline at end of file