Support aggregation of attributes from multiple databases #173

Job	Run time
PHP-Linter (8.2) / linter	16s
Linter / yaml-linter	6s
Linter / json-linter	24s
PHP-Linter (8.3) / linter	10s
PHP-Linter (8.1) / linter	10s
PHP-Linter (8.4) / linter	15s
Linter / style-linter	-1s
Linter / ecmascript-linter	-1s
Unit tests, PHP 8.4, windows-latest	1m 19s
Unit tests, PHP 8.2, windows-latest	1m 22s
Unit tests, PHP 8.3, windows-latest	1m 16s
Unit tests, PHP 8.2, ubuntu-latest	36s
Unit tests, PHP 8.5, windows-latest	1m 15s
Unit tests, PHP 8.4, ubuntu-latest	1m 51s
Unit tests, PHP 8.3, ubuntu-latest	42s
Unit tests, PHP 8.5, ubuntu-latest	2m 58s
Quality control	37s
Code coverage	9s
Security checks	28s
Cleanup artifacts	5s
	13m 57s

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