Bump molecule from 5.1.0 to 6.0.2 #217

Job	Run time
Test role on different ansible versions (2.12, pdns-46)	9m 53s
Test role on different ansible versions (2.12, pdns-47)	13m 53s
Test role on different ansible versions (2.12, pdns-48)	13m 38s
Test role on different ansible versions (2.12, pdns-master)	13m 39s
Test role on different ansible versions (2.12, pdns-os-repos)	8m 33s
Test role on different ansible versions (2.12, systemd-no-overrides)	3m 32s
Test role on different ansible versions (2.13, pdns-46)	9m 50s
Test role on different ansible versions (2.13, pdns-47)	12m 46s
Test role on different ansible versions (2.13, pdns-48)	11m 13s
Test role on different ansible versions (2.13, pdns-master)	11m 13s
Test role on different ansible versions (2.13, pdns-os-repos)	8m 40s
Test role on different ansible versions (2.13, systemd-no-overrides)	3m 21s
Test role on different ansible versions (2.14, pdns-46)	13m 14s
Test role on different ansible versions (2.14, pdns-47)	11m 41s
Test role on different ansible versions (2.14, pdns-48)	11m 56s
Test role on different ansible versions (2.14, pdns-master)	11m 1s
Test role on different ansible versions (2.14, pdns-os-repos)	7m 11s
Test role on different ansible versions (2.14, systemd-no-overrides)	3m 46s
	2h 59m 0s

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