Add reusable phplinter-workflow #87

Job	Run time
Quality control	29s
Linter	1m 25s
Security checks	16s
Unit tests, PHP ${{ matrix.php-versions }}, ${{ matrix.operating-system }}	0s
Unit tests, PHP ${{ matrix.php-versions }}, ${{ matrix.operating-system }}	0s
Code coverage	0s
Cleanup artifacts	0s
	2m 10s

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