Support aggregation of attributes from multiple databases #172

Job	Run time
PHP-Linter (8.2) / linter	13s
PHP-Linter (8.3) / linter	13s
Linter / json-linter	29s
Linter / yaml-linter	4s
PHP-Linter (8.4) / linter	16s
PHP-Linter (8.1) / linter	15s
Linter / ecmascript-linter	0s
Linter / style-linter	-1s
Unit tests, PHP 8.4, ubuntu-latest	33s
Unit tests, PHP 8.3, windows-latest	1m 19s
Unit tests, PHP 8.3, ubuntu-latest	45s
Unit tests, PHP 8.2, windows-latest	1m 9s
Unit tests, PHP 8.2, ubuntu-latest	38s
Unit tests, PHP 8.4, windows-latest	1m 17s
Unit tests, PHP 8.5, windows-latest	1m 14s
Unit tests, PHP 8.5, ubuntu-latest	39s
Security checks	27s
Quality control	29s
Code coverage	8s
Cleanup artifacts	4s
	10m 11s

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