refactor: centralize e2e test process definition

[scolladon]

Explain your changes

---

Create a workflow to run e2e test, taking the channel to install At the PR level, execute e2e test from the package created for QA (better than from sources because it test also the publishing) On main, execute e2e test with the version created

[codecov[bot]]

Codecov Report

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

Project coverage is 100.00%. Comparing base (28cfbb2) to head (4dd0a72).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #840 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 37 37 Lines 1044 1044 Branches 113 113 ========================================= Hits 1044 1044 ```

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[codeclimate[bot]]

Code Climate has analyzed commit 4dd0a721 and detected 0 issues on this pull request.

View more on Code Climate.

[github-actions[bot]]

Published under beta- npm channel.

$ sfdx plugins:install sfdx-git-delta@beta-

[github-actions[bot]]

Shipped in release v5.39.0. You can install the new version using the version number or the latest-rc channel

$ sfdx plugins:install sfdx-git-delta@latest-rc
$ sfdx plugins:install sfdx-git-delta@v5.39.0

Happy incremental deployment!