Add reports to scheduled table

[madelondohmen]

Note: This PR is based on the code of PR #3769

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Changes

This PR fixes the reports that weren't showed on the Scheduled Report page.

Issue link

Closes ...

Demo

After a scheduled report has been generated, you will now see the generated reports in the scheduled table:

QA notes

• Create a scheduled report
• Change the cron to * * * * *
• Wait a minute
• Go to Scheduled Report page
• Open the schedule table row
• You should see the generated report

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Code Checklist

• All the commits in this PR are properly PGP-signed and verified.
• This PR only contains functionality relevant to the issue.
• I have written unit tests for the changes or fixes I made.
• I have checked the documentation and made changes where necessary.
• I have performed a self-review of my code and refactored it to the best of my abilities.

• Tickets have been created for newly discovered issues.
• For any non-trivial functionality, I have added integration and/or end-to-end tests.
• I have informed others of any required .env changes files if required and changed the .env-dist accordingly.
• I have included comments in the code to elaborate on what is not self-evident from the code itself, including references to issues and discussions online, or implicit behavior of an interface.

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Checklist for code reviewers:

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Checklist for QA:

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