Bump phpstan/extension-installer from 1.4.1 to 1.4.2 #448

Job	Run time
Coding Standards	27s
Code Coverage / Code Coverage	22s
Static analysis / Static Code Analysis (8.2)	28s
Dependency analysis / Dependency Analysis (8.2)	32s
Unit test / Supported Versions Matrix	6s
Lint root / Lint yaml & Composer (8.2)	13s
Unit test / Tests (8.1, lowest)	1m 10s
Unit test / Tests (8.1, locked)	31s
Unit test / Tests (8.1, highest)	35s
Unit test / Tests (8.2, lowest)	1m 6s
Unit test / Tests (8.2, locked)	12s
Unit test / Tests (8.2, highest)	34s
Unit test / Tests (8.3, lowest)	24s
Unit test / Tests (8.3, locked)	51s
Unit test / Tests (8.3, highest)	1m 27s
Integration test / Supported Versions Matrix	5s
Integration test / Tests (8.1, lowest)	25s
Integration test / Tests (8.1, locked)	27s
Integration test / Tests (8.1, highest)	28s
Integration test / Tests (8.2, lowest)	33s
Integration test / Tests (8.2, locked)	22s
Integration test / Tests (8.2, highest)	18s
Integration test / Tests (8.3, lowest)	28s
Integration test / Tests (8.3, locked)	14s
Integration test / Tests (8.3, highest)	36s
	12m 54s

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