Restore TypedTextContentTrait::setContent #1276

Job	Run time
PHP-Linter (8.5) / linter	12s
Linter / json-linter	27s
PHP-Linter (8.3) / linter	10s
Linter / yaml-linter	5s
PHP-Linter (8.4) / linter	14s
Linter / ecmascript-linter	0s
Linter / style-linter	0s
Unit tests, PHP 8.3, ubuntu-latest	27s
Unit tests, PHP 8.3, windows-latest	59s
Unit tests, PHP 8.4, windows-latest	55s
Unit tests, PHP 8.5, ubuntu-latest	24s
Unit tests, PHP 8.5, windows-latest	58s
Unit tests, PHP 8.4, ubuntu-latest	22s
Quality control	37s
Security checks	17s
Code coverage	8s
Cleanup artifacts	3s
	6m 18s

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