update test suite to using SOAP messages #200

Job	Run time
PHP-Linter (8.1) / linter	13s
Linter / json-linter	29s
Linter / yaml-linter	6s
PHP-Linter (8.4) / linter	18s
PHP-Linter (8.2) / linter	19s
PHP-Linter (8.3) / linter	13s
Linter / ecmascript-linter	0s
Linter / style-linter	0s
Unit tests, PHP 8.2, windows-latest	1m 5s
Unit tests, PHP 8.3, windows-latest	1m 6s
Unit tests, PHP 8.1, windows-latest	54s
Unit tests, PHP 8.4, windows-latest	52s
Unit tests, PHP 8.3, ubuntu-latest	22s
Unit tests, PHP 8.1, ubuntu-latest	23s
Unit tests, PHP 8.2, ubuntu-latest	21s
Unit tests, PHP 8.4, ubuntu-latest	25s
Code coverage	11s
Security checks	26s
Quality control	33s
Cleanup artifacts	4s
	8m 20s

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