actions: Add ext-sodium #664

Job	Run time
PHP-Linter (8.4) / linter	11s
Linter / ecmascript-linter	18s
Linter / yaml-linter	5s
PHP-Linter (8.5) / linter	11s
PHP-Linter (8.3) / linter	10s
Linter / json-linter	32s
Linter / style-linter	0s
Unit tests, PHP 8.4, windows-latest	1m 17s
Unit tests, PHP 8.3, windows-latest	1m 2s
Unit tests, PHP 8.4, ubuntu-latest	33s
Unit tests, PHP 8.5, windows-latest	1m 6s
Unit tests, PHP 8.5, ubuntu-latest	34s
Unit tests, PHP 8.3, ubuntu-latest	34s
Code coverage	8s
Security checks	29s
Quality control	35s
Cleanup artifacts	3s
	7m 48s

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