Add dsig11:Prime-element #1324

Job	Run time
Security checks	13s
Quality control	21s
PHP-Linter (8.1) / linter	20s
PHP-Linter (8.2) / linter	9s
PHP-Linter (8.3) / linter	11s
PHP-Linter (8.4) / linter	15s
Linter / json-linter	28s
Linter / yaml-linter	5s
Linter / ecmascript-linter	0s
Linter / style-linter	0s
Unit tests, PHP ${{ matrix.php-versions }}, ${{ matrix.operating-system }}	0s
Unit tests, PHP ${{ matrix.php-versions }}, ${{ matrix.operating-system }}	0s
Code coverage	0s
Cleanup artifacts	0s
	2m 2s

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