[#5129] Adjust reports to support cumulative updates feature

[zuhdil]

trafficstars

TODO / Done

Summarize what has been changed / what has to be done in order to finalize the PR.

• [x] results_indicators_with_map_pdf_reports.py
• [x] results_indicators_excel_report.py
• [x] kickstart_word_report.py
• [x] eutf_org_results_table_excel_report.py
• [x] program_overview_pdf_report.py
• [x] program_period_labels_overview_pdf_report.py
• [x] program_overview_excel_report.py
• [x] project_results_indicators_excel_report.py

Test plan

What tests are necessary to ensure this works or doesn't break anything working

• [x] Unit test

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Closes #5129