composer(deps-dev): Bump roave/backward-compatibility-check from 8.5.0 to 8.6.0 #1520

Job	Run time
Code Coverage (8.1, locked)	24s
Coding Standards (8.1, locked)	19s
Backward-Compatibility Analysis (8.1, locked)	17s
Dependency Analysis (8.1, locked)	21s
Mutation Tests (8.1, locked)	39s
Security Analysis (8.1, locked)	46s
Refactoring (8.1, locked)	18s
Static Code Analysis (8.1, locked)	31s
Tests (8.1, lowest)	24s
Tests (8.1, locked)	19s
Tests (8.1, highest)	18s
Tests (8.2, lowest)	25s
Tests (8.2, locked)	20s
Tests (8.2, highest)	19s
Tests (8.3, lowest)	18s
Tests (8.3, locked)	12s
Tests (8.3, highest)	21s
	6m 31s

Provide feedback