Integration tests: Small updates & triggering in every PR.

[kkeroo]

This PR adds the ability to run integration tests on all connected platforms (RVC2, RVC4). If there are multiple RVC2 devices connected it will only select one.

Additionally, there was a bug in ImageOutputParser because we were setting the attribute transformation of the dai.ImgFrame which doesn't have this attribute - fixing it with the method setTransformations(). Hopefully, this bugs will be catched now:)

Lastly, we updated the CI workflows for E2E and integration tests with the option to specify which depthai version we want - the specified version will then be installed in the testbed server before the tests run. CI jobs will also wait until testbed is free and wont fail the job if testbed is reserved.

Integration tests are included in the CI for every PR. They are triggered only if the affected files are from /depthai-nodes or /tests/integration-tests folder.

Successful CI run for integration tests is HERE. It took 10 minutes.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 33.30%. Comparing base (37a2d92) to head (2fa4954).
Report is 17 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
depthai_nodes/ml/parsers/image_output.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #146      +/-   ##
==========================================
- Coverage   33.40%   33.30%   -0.10%     
==========================================
  Files          68       69       +1     
  Lines        3739     3837      +98     
==========================================
+ Hits         1249     1278      +29     
- Misses       2490     2559      +69     

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[jkbmrz]

LGTM.