String array command with SystemCommandTasklet

[philippe-tr]

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[fmbenhassine]

@philippe-tr Thank you for your PR! Could you please rebase it on the latest main branch? It would be easier for us to only review the changes related to the PR. Thank you upfront.

[philippe-tr]

PR updated to latest main.

[philippe-tr]

Hi. Will this make into 4.2.8 or 4.3.4, or 5.0.0?

[fmbenhassine]

This is better merged in v5 along with #3972.

As a side note, it seems that you did a merge and not a rebase. I will try to take care of this when tackling this PR.

[philippe-tr]

@benas Thanks for handling for correcting my merge to a rebase. I got tripped up with the upstream, forked, and local repos. I'll be more careful next time.

[fmbenhassine]

Rebased, squashed and merged as 746c9193725806a2194042a7e5be063dceca5e1a. The feature of passing a single String for the command and its arguments turned out to be confusing, so it was not merged. The way to specify the command and its arguments is through an array of Strings (similar to the ProcessBuilder API), which is less confusing and makes the implementation simpler (see refinement in 26c39cbbae55cbc0b7b0b61bea4091f26dc19666).

Thank you for your contribution!