Ensure parameter is provided in correct type

[sgiehl]

Description:

fixes #21345

Review

• 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

[tsteur]

@matomo-org/core-reviewers do other plugins also need to be updated? Like Cohorts and MarketingCampaignReporting?

[sgiehl]

@tsteur I had pushed fixes for those plugins as well.

[tsteur]

@sgiehl do we know why tests didn't pick this one up? Or if it's possible to add tests to cover such things?

[sgiehl]

Actually when looking at the stack trace of the error again, there might be another problem, which would not be fixed but hidden by the changes here. It seems to pass __mtm_ranking_query_others__ as idGoal, which means the ranking query seems to group some goals in an others row for some reason. We might need to investigate that again.