CI: use test.sh script which can be executed locally

With this change, it should be faster and safer to run tests locally. By running

bash test.sh

or

./test.sh

you can run the same workflow as the CI on github. The test runs are using an encapsulated directory for the resources which does not interfere with the default resources. Therefore, it is easy to switch between low (i.e. in tests) and high (default) network resolution.

Closes #905

Changes proposed in this Pull Request

Checklist

• I tested my contribution locally and it seems to work fine.
• Code and workflow changes are sufficiently documented.
• Changed dependencies are added to envs/environment.yaml.
• Changes in configuration options are added in all of config.default.yaml.
• Changes in configuration options are also documented in doc/configtables/*.csv.
• A release note doc/release_notes.rst is added.