Improvements to GitHub Actions

[SalvatoreZagaria]

• The E2E tests were already ending when a failure happened, but GHA was not detecting the failure. We now parse the output to see if the suite has failed, and in case, we return a 1 status code.
• The runs naming has been changed to "branch-name is being tested"
• We have a new job that checks the python scripts format with black
• We don't run the jobs if the trigger comes from a draft PR
• We upload screenshots separately (not in an archive)
• Removed container's option -v /var/run/dbus/system_bus_socket:/var/run/dbus/system_bus_socket:rw, suspected to be the reason why the containers hang when running E2E tests at the same time

[github-actions[bot]]

E2e Test results - Vcast 24

14 files  14 suites   34m 11s :stopwatch: 50 tests 50 :white_check_mark: 0 :zzz: 0 :x: 96 runs  96 :white_check_mark: 0 :zzz: 0 :x:

Results for commit 7f48160c.

[github-actions[bot]]

Unit Test results

 1 files   5 suites   4s :stopwatch: 42 tests 42 :white_check_mark: 0 :zzz: 0 :x: 43 runs  43 :white_check_mark: 0 :zzz: 0 :x:

Results for commit 7f48160c.

[codecov[bot]]

Codecov Report

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

Project coverage is 84.56%. Comparing base (886f0d1) to head (7f48160). Report is 4 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #127 +/- ## ======================================= Coverage 84.56% 84.56% ======================================= Files 6 6 Lines 946 946 Branches 122 122 ======================================= Hits 800 800 Misses 24 24 Partials 122 122 ``` | [Flag](https://app.codecov.io/gh/vectorgrp/vector-vscode-vcast/pull/127/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=vectorgrp) | Coverage Δ | | |---|---|---| | [Unit](https://app.codecov.io/gh/vectorgrp/vector-vscode-vcast/pull/127/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=vectorgrp) | `84.56% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=vectorgrp#carryforward-flags-in-the-pull-request-comment) to find out more.

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[github-actions[bot]]

E2e Test results - Vcast 23

 9 files   9 suites   2h 38m 22s :stopwatch: 22 tests 21 :white_check_mark: 0 :zzz: 0 :x: 1 :fire: 40 runs  38 :white_check_mark: 0 :zzz: 1 :x: 1 :fire:

For more details on these errors, see this check.

Results for commit 7f48160c.