Remove unnecessary toXML/fromXML #562

Job	Run time
Quality control	35s
Quality control	35s
Quality control	35s
Linter	1m 39s
Linter	1m 39s
Linter	1m 39s
Security checks	12s
Security checks	12s
Security checks	12s
Unit tests, PHP 8.1, ubuntu-latest	16s
Unit tests, PHP 8.1, ubuntu-latest	16s
Unit tests, PHP 8.1, ubuntu-latest	16s
Unit tests, PHP 8.1, windows-latest	38s
Unit tests, PHP 8.1, windows-latest	38s
Unit tests, PHP 8.1, windows-latest	38s
Unit tests, PHP 8.2, windows-latest	33s
Unit tests, PHP 8.2, windows-latest	33s
Unit tests, PHP 8.2, windows-latest	33s
Unit tests, PHP 8.2, ubuntu-latest	19s
Unit tests, PHP 8.2, ubuntu-latest	19s
Unit tests, PHP 8.2, ubuntu-latest	19s
Unit tests, PHP 8.3, windows-latest	32s
Unit tests, PHP 8.3, windows-latest	32s
Unit tests, PHP 8.3, windows-latest	32s
Unit tests, PHP 8.3, ubuntu-latest	16s
Unit tests, PHP 8.3, ubuntu-latest	16s
Unit tests, PHP 8.3, ubuntu-latest	16s
Code coverage	10s
Code coverage	5s
Code coverage	5s
Cleanup artifacts	0s
Cleanup artifacts	0s
Cleanup artifacts	3s
	15m 23s

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