Group and refactor e2e tests

[Piotrk39]

Describe your changes

Groups all e2e scenarios into trigger and no trigger divided by categories to improve performance of test execution.

What changed:

• Tests are now grouped in Trigger and NoTrigger scenarios
• Reset of DB happens only once per group test execution and is redone when test fails for the first time (eg. due to timeout or network issue)
• Instances are initiated only once per group of tests

Checklist before requesting a review

• I have performed a self-review of my code
• I have added tests wherever relevant
• I have made sure that all automated checks pass before requesting a review

Notes for the reviewer

Aim of this refactor was to reduce the time needed for the e2e test execution and create a space in groups for the future tests.

[Piotrk39]

@gulfaraz I took a look at this PR and the one with fixes from @jannisvisser . It looks like a tremendous effort was put into refactoring of this framework. Hats off to all of us 🚀