chore: bump version to 2.18.0 (monicahq#4052)

chore: bump version to 2.17.0 (monicahq#3723)

chore: bump version to 2.16.0 (monicahq#3413)

chore: bump v2.15.2 (monicahq#3049)

chore: bump version 2.15.1 (monicahq#3042)

chore: bump version 2.15.0 (monicahq#3017)

chore: bump version to 2.14.0 (monicahq#2690)

chore(deps): require php 7.2 (monicahq#2580)

chore: bump version 2.12.1 (monicahq#2506)

chore: bump version 2.12.0 (monicahq#2403)