[android_alarm_manager] Update minimum Flutter version to 1.12.0 (#2327)
[android_alarm_manager] Update minimum Flutter version to 1.12.0 (#2327)


tvolkert/plugins,flutter/plugins,flutter/plugins,mehmetf/plugins,mehmetf/plugins,mehmetf/plugins,tvolkert/plugins,mehmetf/plugins,flutter/plugins,flutter/plugins,tvolkert/plugins,mehmetf/plugins,flutter/plugins,flutter/plugins,tvolkert/plugins,flutter/plugins,flutter/plugins