Bump cross-spawn from 6.0.5 to 6.0.6 #267

Job	Run time
Tests (ubuntu-latest, 7.4, lowest, ^5)	4m 44s
Tests (ubuntu-latest, 7.4, highest, ^5)	4m 47s
Tests (ubuntu-latest, 8.0, lowest, ^5)	4m 59s
Tests (ubuntu-latest, 8.0, lowest, ^6)	5m 0s
Tests (ubuntu-latest, 8.0, highest, ^5)	4m 53s
Tests (ubuntu-latest, 8.0, highest, ^6)	4m 57s
Tests (ubuntu-latest, 8.1, lowest, ^5)	5m 6s
Tests (ubuntu-latest, 8.1, lowest, ^6)	4m 58s
Tests (ubuntu-latest, 8.1, highest, ^5)	4m 57s
Tests (ubuntu-latest, 8.1, highest, ^6)	5m 8s
Tests (ubuntu-latest, 8.2, lowest, ^5)	1m 33s
Tests (ubuntu-latest, 8.2, lowest, ^6)	4m 16s
Tests (ubuntu-latest, 8.2, lowest, ^7)	1m 23s
Tests (ubuntu-latest, 8.2, highest, ^5)	5m 4s
Tests (ubuntu-latest, 8.2, highest, ^6)	4m 54s
Tests (ubuntu-latest, 8.2, highest, ^7)	5m 0s
Tests (ubuntu-latest, 8.3, lowest, ^5)	1m 22s
Tests (ubuntu-latest, 8.3, lowest, ^6)	1m 22s
Tests (ubuntu-latest, 8.3, lowest, ^7)	1m 16s
Tests (ubuntu-latest, 8.3, highest, ^5)	1m 30s
Tests (ubuntu-latest, 8.3, highest, ^6)	1m 58s
Tests (ubuntu-latest, 8.3, highest, ^7)	1m 17s
Tests (windows-latest, 8.0, highest, 5.4.2)	5m 56s
Tests (macos-latest, 8.0, highest, ^5)	5m 35s
	1h 31m 55s

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