run integrated tests on dedicated runner to avoid overloading of streak2

[rrsettgast]

This PR specifies running of integrated tests on dedicated runner to avoid multiple integratedTest jobs overloading streak2.

this should help with stability, but only a single integratedTests job runs at a time.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 53.78%. Comparing base (b726e1a) to head (f9a0a3c).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #3171 +/- ## ======================================== Coverage 53.78% 53.78% ======================================== Files 1016 1016 Lines 85826 85826 ======================================== Hits 46165 46165 Misses 39661 39661 ```

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