Support ranges with two dates for invalidateArchivedReports API call

[bx80]

Description:

Fixes #20400

invalidateArchivedReports API calls with specific date ranges were failing with an invalid date error due to the was the date string was being processed:

/index.php?module=API&method=CoreAdminHome.invalidateArchivedReports&idSites=1&period=range&dates=2023-01-01,2023-03-03&token_auth=xxx

This PR adds explicit handling for specific date ranges.

• Functional review done
• Potential edge cases thought about (behavior of the code with strange input, with strange internal state or possible interactions with other Matomo subsystems)
• Usability review done (is anything maybe unclear or think about anything that would cause people to reach out to support)
• Security review done
• Wording review done
• Code review done
• Tests were added if useful/possible
• Reviewed for breaking changes
• Developer changelog updated if needed
• Documentation added if needed
• Existing documentation updated if needed

[sgiehl]

@bx80 Was there any reason for putting this into Matomo 4? Maybe we should move this to Matomo 5 instead. Btw. would be good to add new test cases.

[github-actions]

This issue is in "needs review" but there has been no activity for 7 days. ping @matomo-org/core-reviewers

[sgiehl]

@bx80 I had another very close look to the API and actually I think the changes were not really needed. At least not that way.
The method was already able to parse ranges, but they are actually expected them to be passed as array.
A small adjustment was actually enough to also support ranges passed as string and to fix errors thrown for some invalid dates.
I'll push a change for that. Feel free to have a look and merge it if that works for you :-)

[bx80]

Nice spot 👍