Integrate gitlab-ci/SW-1555_fix_on_422_error_code and 1 more

Commit: https://git.seco.com/edgehog/infrastructure/gitlab-ci/-/commit/5682aa053a0ee45193d3188a998a3ca700fdba9f

[TOKEN] Insert separated token to fetch LAVA test cases

• Use a dedicated token with higher restrictions to be used when triggering LAVA tests
• Jira bug reference: SW-2172

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Commit: https://git.seco.com/edgehog/infrastructure/gitlab-ci/-/commit/c5154a56b326d048cdf67e90861522e85e62b83f

[FIX] Bug fix on MRs failing to be merged for 422

• Sometimes the error ‘422: Branch cannot be merged’ has been noted in cases where the automation fails to rebase (despite no conflicts) and then automatically merge an MR.
• This commit circumvents the problem by trying to rebase when such an error occurs and then trying again to merge.
• Jira bug reference: SW-1555