Merge pull request GoAdminGroup#444 from GoAdminGroup/pre-release

add drone ci

feat(release): ready for v1.2.22

feat(release): ready for v1.2.21

feat(release): ready for v1.2.20

feat(release): ready for v1.2.19

feat(release): ready for v1.2.18

fix(admin): info table display error

feat(release): ready for v1.2.16

feat(plugins): improve plugins && ready for v1.2.15

docs(readme): update readme