Update simplesamlphp/xml-common requirement #1300

Job	Run time
Security checks	24s
Quality control	29s
Linter / yaml-linter	5s
Linter / json-linter	26s
PHP-Linter (8.1) / linter	19s
PHP-Linter (8.2) / linter	22s
PHP-Linter (8.3) / linter	11s
Linter / ecmascript-linter	-1s
Linter / style-linter	-1s
PHP-Linter (8.4) / linter	11s
Unit tests, PHP 8.2, ubuntu-latest	15s
Unit tests, PHP 8.3, windows-latest	45s
Unit tests, PHP 8.3, ubuntu-latest	19s
Unit tests, PHP 8.4, ubuntu-latest	21s
Unit tests, PHP 8.1, ubuntu-latest	15s
Unit tests, PHP 8.4, windows-latest	43s
Unit tests, PHP 8.2, windows-latest	45s
Unit tests, PHP 8.1, windows-latest	43s
Code coverage	10s
Cleanup artifacts	3s
	6m 44s

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