GH Actions: Bump ramsey/composer-install from 2 to 3 #231

Job	Run time
Static Analysis	5m 59s
Lint (5.3, false)	14s
Lint (5.4, false)	16s
Lint (5.5, false)	14s
Lint (5.6, false)	16s
Lint (7.0, false)	30s
Lint (7.1, false)	15s
Lint (7.2, false)	19s
Lint (7.3, false)	17s
Lint (7.4, false)	20s
Lint (8.0, false)	16s
Lint (8.1, false)	20s
Lint (8.2, false)	15s
Lint (8.3, false)	11s
Lint (8.4, true, --ignore-platform-reqs)	9s
	9m 51s

Provide feedback