Replace array_pop with array_last #3611

Job	Run time
Linter / yaml-linter	10s
PHP-Linter (8.5) / linter	12s
Linter / json-linter	27s
Linter / ecmascript-linter	-8s
Linter / style-linter	-9s
Unit tests, PHP ${{ matrix.php-versions }}, ${{ matrix.operating-system }}	0s
Unit tests, PHP ${{ matrix.php-versions }}, ${{ matrix.operating-system }}	0s
Code coverage	0s
Quality control	0s
Security checks	0s
Cleanup artifacts	0s
	32s

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