Support aggregation of attributes from multiple databases #146

Job	Run time
Quality control	34s
Linter	1m 19s
Security checks	22s
Unit tests, PHP 8.2, windows-latest	2m 24s
Unit tests, PHP 8.3, windows-latest	2m 11s
Unit tests, PHP 8.1, windows-latest	1m 32s
Unit tests, PHP 8.1, ubuntu-latest	24s
Unit tests, PHP 8.2, ubuntu-latest	32s
Unit tests, PHP 8.4, ubuntu-latest	34s
Unit tests, PHP 8.4, windows-latest	1m 21s
Unit tests, PHP 8.3, ubuntu-latest	36s
Code coverage	10s
Cleanup artifacts	3s
	12m 2s

Provide feedback