chore: update deprecated action dep · dhis2/maintenance-app@37095d7

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions/setup-node@v1, actions/cache@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/checkout@v2, actions/setup-node@v1, actions/cache@v2. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

'DialogRouter' is defined but never used

'event' is assigned a value but never used

'React' is defined but never used

'decimals' is defined but never used

'ProgramIndicatorExpression' is defined but never used

'AnalyticsPeriodBoundaries' is defined but never used

'Observable' is defined but never used

'getD2' is defined but never used

'PropTypes' is defined but never used

'sectionFormIndex' is assigned a value but never used

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